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Slippery slope

Slippery Slope, Same Sex Marriage, Goats & Corpses

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Gray-GoatWhile same-sex marriage seems to have momentum in its favor in the United States, there is still considerable opposition to its acceptance. This opposition is well stocked up with stock arguments against this practice. One of these is the slippery slope argument: if same-sex marriage is allowed, then people will then be allowed to marry turtles, dolphins, trees, cats, corpses or iPads.  Since this would be bad/absurd, same-sex marriage should not be allowed. This is, of course, the classic slippery slope fallacy.

This is a fallacy in which a person asserts that some event must inevitably follow from another without any argument for the inevitability of the event in question. In most cases, there are a series of steps or gradations between one event and the one in question and no reason is given as to why the intervening steps or gradations will simply be bypassed. This “argument” has the following form:

1. Event X has occurred (or will or might occur).
2. Therefore event Y will inevitably happen.

This sort of “reasoning” is fallacious because there is no reason to believe that one event must inevitably follow from another without adequate evidence for such a claim. This is especially clear in cases in which there are a significant number of steps or gradations between one event and another.

In the case of same-sex marriage the folks who claim these dire results do not make the causal link needed to infer, for example, that allowing same-sex marriage will lead to people marrying goats.  As such, they are committing this fallacy and inviting others to join them in their error.

While I have written a reply to this fallacious argument before, hearing someone making the argument using goat marriage and corpse marriage got me thinking about the matter once again.

Using goat marriage as an example, the idea is that if same-sex marriage is allowed, then there is no way to stop the slide into people marrying goats. Presumably people marrying goats would be bad, so this should be avoided. In the case of corpse marriage, the gist is that if same-sex marriage is allowed, then there would be no way to stop the slide into people marry corpses. This would presumably be bad and hence must be avoided.

The slide down the slippery slope, it must be assumed, would occur because a principled distinction cannot be drawn between humans and goats. Nor can a principled distinction be drawn between living humans and corpses. After all, if such principled distinctions could be drawn, then the slide from same-sex marriage to goat marriage and corpse marriage could be stopped in a principled way, thus allowing same-sex marriage without the alleged dire consequences.

For the slippery slope arguments to work, there must not be a way to stop the slide. That is, there is a smooth and well-lubricated transition between humans and goats and between living humans and corpses. Since this is a conceptual matter rather than a matter of actual slopes, the slide would go both ways. That is, if we do not have an adequate wall between goats and humans, then the wall can be jumped from either direction. Likewise for corpses.

So, for the sake of argument, let it be supposed that there are not such adequate walls—that once we start moving, we are over the walls or down the slopes. This would, apparently, show that same-sex marriage would lead to goat marriage and corpse marriage. Of course, it would also show that different sex-marriage would lead to a slide into goat marriage and corpse marriage (I argued this point in my book, For Better or Worse Reasoning, so I will not repeat the argument here).

Somewhat more interestingly, the supposition of a low wall (or slippery slope) between humans and animals would also lead to some interesting results. For example, if we allow animals to be hunted and there is no solid wall between humans and animals in terms of laws and practices, then that would put us on the slippery slope to the hunting of humans. So, by the logic of the slippery slope, we should not allow humans to hunt animals. Ditto for eating animals—after all, if same-sex marriage leads to goat marriage, then eating beef must surely lead to cannibalism.

In the case of the low wall (or slippery slope) between corpses and humans, then there would also be some odd results. For example, if we allow corpses to be buried or cremated and there is no solid wall between the living and the dead, then this would put us on the slippery slope to burying or cremating the living. So, by the logic of the slippery slope, we should not allow corpses to be buried or cremated. Ditto for denying the dead the right to vote. After all, if allowing same-sex marriage would warrant necrophilia, then denying corpses the vote would warrant denying the living the right to vote.

Obviously, people will want to say that we can clearly distinguish between animals and humans as well as between the living and corpses. However, if we can do this, then the slippery slope argument against same-sex marriage would lose its slip.

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Cruzing the Slippery Slope

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English: Ted Cruz at the Republican Leadership...
 (Photo credit: Wikipedia)

Because of its psychological appeal and versatility, the slippery slope is a very popular fallacy.  Thus, it is no surprise that Senator Ted Cruz employed it in his recent “argument” against expanding background checks.

The slippery slope is a fallacy in which a person asserts that some event must inevitably follow from another without any argument for the inevitability of the event in question. In most cases, there are a series of steps or gradations between one event and the one in question and no adequate reason is given as to why the intervening steps or gradations will simply be bypassed. This “argument” has the following form:

  1. Event X has occurred (or will or might occur).
  2. Therefore event Y will inevitably happen.

This sort of “reasoning” is fallacious because there is no reason to believe that one event must inevitably follow from another without an argument for such a claim. This is especially clear in cases in which there is a significant number of steps or gradations between one event and another.

In the case of Cruz, his  reasoning was as follows:

“The Department of Justice has been explicit that when you require background checks for private firearms transactions, the only way to make that effective is through a national gun registry. So if the bill that is pending on the floor of the Senate passed, the next step in the process would be that critics would say, ‘Well this isn’t effective. We don’t know if you’re selling your firearm to someone else unless we know you have your firearm.’ And in my judgment a federal registry of firearms … would be terrible policy and would be inconsistent with the Constitution.”

On the face of it, it might be contended that Cruz is not presenting a slippery slope fallacy. After all, he does  claim that making background checks effective would require such a registry and the “critics” would presumably make that “terrible policy” a reality.

However, looked at more closely, he is still presenting a slippery slope fallacy. While he does purport to provide a reason to think that passing the law in question would lead inevitably to a national gun registry, he actually fails to adequately connect the two.  As he conceded on 4/17/2013, the proposed legislation does not create a national gun registry. In fact, the Manchin-Toomey background check legislation actually makes it a felony for government officials to store gun records.  Thus, the legislation that is alleged to lead to a national gun registry actually would have made it illegal which would, obviously enough, stop the slippery slope slide immediately.  As such, the argument given by Cruz fails to support his conclusion and its only appeal is the psychological fear that passing the law would have led to a national gun registry.

It might be countered that someone could come along a pass a law that would allow a national gun registry, thus there is no slippery slope. However, what is wanting would be the same thing that is wanting now-adequate evidence that this would occur because of the passage of the original law.

I am reasonably sure that Cruz knows he employed a slippery slope-I do not think that he said what he said out of an ignorance of logic. Rather, I suspect he employed it intentionally, knowing how effective the fallacy is as a rhetorical device. After all, he is an Ivy League graduate and perhaps even an intellectual under his new persona. It was, it seems, clever of him to use this approach: he won, despite the fact that the majority of the senate and the vast majority of Americans supported the proposed legislation.

 

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The Polygamy Argument & Same-Sex Marriage

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Wasatch Polygamy Porter
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One of the many stock fallacious arguments against same sex-marriage is the slippery slope argument in which it is contended that allowing same sex-marriage will lead to allowing polygamous marriage (or at least bigamy). The mistake being made is, of course, that the link between the two is not actually made. Since the slippery slope fallacy is a fallacy, this is obviously a bad argument.

A non-fallacious argument that is also presented against same sex-marriage involves the contention that allowing same-sex marriage on the basis of a specific principle would require that, on the pain of inconsistency, we also accept polygamous marriage. This principle is typically some variant of the principle that a person should be able to marry any other person. Given that polygamous marriage is supposed to be bad, this would seem to entail that we should not allow same-sex marriage.

My first standard reply to this argument is that if different-sex marriage does not require us to accept polygamous marriage, then neither does accepting same-sex marriage. But, if accepting same-sex marriage entails that we have to accept polygamous marriage, the same would also apply to different-sex marriage. That this is so is shown by the following argument. If same-sex marriage is based on the principle that a person should be allowed to marry the person they wish to marry, then it would seem that different-sex marriage is based on the principle that a person should be allowed to marry the person of the opposite sex they wish to marry. By analogy, if allowing a person to marry any person they want to marry allows polygamous marriage, then allowing a person to marry a member of the opposite sex would also allow polygamous marriage-albeit only to a member of the opposite sex. But, if the slide to polygamy can be stopped in the case of different-sex marriage, then the same stopping mechanism can be used in the case of same-sex marriage.

In the case of different-sex marriage, there is generally an injunction against people marrying more than one person at a time. This same injunction would certainly seem to be applicable in the case of same-sex marriage. After all, there is nothing about accepting same-sex marriage that inherently requires accepting polygamous marriage.

In light of the above, the polygamy gambit against same-sex marriage would seem to fail.  That is, the claim about the slide into polygamy that would supposedly result from legalizing same-sex marriage is unfounded.

There is, however, still an interesting question in regards to polygamy, namely the matter of whether or not it is wrong. After all, even if it could be shown that same-sex marriage would lead to polygamy, this would only be a problem is polygamy was actually wrong in some relevant way.

While polygamous marriage is not unheard of and there are also traditions of the practice, appealing to common practice or tradition to defend polygamy would obviously be fallacious. What is needed is a proper examination of the practice.

It is often the case that polygamy is condemned not directly because it is polygamy, but because of other factors associated with the specific sort of polygamy in question. For example, a culture that accepts polygamy might do so based on the view that women are inferior to men. In this case, it would not primarily be the polygamy that is problematic, but the way women are regarded and treated. As another example, polygamy might be practiced with under-aged and coerced brides (as has been seen in certain cults in the United States). In this case, the main concerns would seem to be with the coercion and age.  In these and similar cases, the main point of concern would seem to not be that a man has many wives, but the treatment of the women.  Thus, the moral problem with polygamy might not be a moral problem with the polygamy aspect, but the context of the polygamy.

Let it be supposed that polygamy was occurring in a situation devoid of such other negative factors. That is, those involved were not coerced, underage, or mistreated.  The question would then be this: what is it about having multiple spouses itself that is wrong, if anything?

It might, obviously enough, be countered that any polygamous nature would be defective. For example, it could be argued that polygamy, by its very nature, must involve an imbalance in marital power (usually the male over the females) or, at the very least, it would always result in some of the spouses being denied the full benefits of marriage (that is, a single man could not attend to the emotional and physical needs of multiple women).

Naturally, it can easily be pointed out that critics of “traditional” marriage have pointed to the traditional imbalance in power between men and women and women being denied the full benefits of marriage. As such, these defects could be defects in marriage rather than a defect specific to polygamy-a polygamous marriage might merely multiple the disparities.

It is worth noting that these defects seem to arise from polygamy of the traditional sort: a male possessing a harem of wives. As such it would seem worthwhile to consider various forms of non-traditional polygamy, especially one involving multiple spouses of different sexes. Naturally, there could be different-sex polygamy of this sort (the marriage holds between the different sexes but not between the same sexes) or same-sex polygamy or bi-sexual polygamy. The notion of an extended marriage (with co-wives and co-husbands) was considered in science fiction by Robert Heinlein and he seemed to regard it as a potentially healthy and effective system of marriage. Of course, the fictional consideration of this matter could, at best, be considered a thought experiment. However, Heinlein did note the advantages for children (which he seemed to be regarded as of great importance in the context of marriage) in terms of the number of parents available to provide care and support.

Obviously enough, we have no real evidence of how a polygamous marriage between free and equal spouses would actually work-we just have our unfree and unequal world to draw upon for examples.  However, it should, perhaps, not be dismissed out of hand or regarded as inherently defective.

In response to the obvious question, I would not want multiple wives. I failed with one wife and have no desire to multiply my failure.

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The Incest Argument & Same-Sex Marriage

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Marriage March 2013
(Photo credit: American Life League)

One of the stock fallacious arguments against same sex-marriage is the slippery slope argument in which it is contended that allowing same sex-marriage will lead to allowing incestuous marriage. The mistake being made is, of course, that the link between the two is not actually made. Since the slippery slope fallacy is a fallacy, this is obviously a bad argument.

A non-fallacious argument that is also presented against same sex-marriage involves the contention that allowing same-sex marriage on the basis of a certain principle would require that, on the pain of inconsistency, we also accept incestuous marriage. This principle is typically some variant of the principle that a person should be able to marry any other person. Given that incestuous marriage is bad, this would seem to entail that we should not allow same-sex marriage.

My first standard reply to this argument is that if different-sex marriage does not require us to accept incestuous marriage, then neither does accepting same-sex marriage. But, if accepting same-sex marriage entails that we have to accept incestuous marriage, the same would also apply to different-sex marriage. That this is so is shown by the following argument. If same-sex marriage is based on the principle that a person should be allowed to marry the person they wish to marry, then it would seem that different-sex marriage is based on the principle that a person should be allowed to marry the person of the opposite sex they wish to marry. By analogy, if allowing a person to marry any person they want to marry allows incestuous marriage, then allowing a person to marry a member of the opposite sex would also allow incestuous marriage-albeit only to a member of the opposite sex. But, if the slide to incest can be stopped in the case of different-sex marriage, then the same stopping mechanism can be used in the case of same-sex marriage.

In the case of different-sex marriage, there is generally an injunction against people marrying close relatives. This same injunction would certainly seem to be applicable in the case of same-sex marriage. After all, there is nothing about accepting same-sex marriage that inherently requires accepting incestuous marriage.

One possible objection to my reply is that incestuous different-sex marriage is forbidden on the grounds that such relationships could produce children. More specifically, incestuous reproduction tends to be more likely to produce genetic defects which would provide a basis for a utilitarian moral argument against allowing incestuous marriage.  Obviously, same-sex marriages have no possibility of producing children naturally. This would be a relevant difference between same-sex marriage and different-sex marriage. Thus, it could be claimed that while different-sex marriage can be defended from incestuous marriage on these grounds, the same can not be said for same-sex marriage. Once it is allowed, then it would be unprincipled to deny same-sex-incestuous marriage.

There are four obvious replies here.

First, if the only moral problem with incestuous marriage is the higher  possibility of producing children with genetic defects, then incestuous same-sex marriage would not be morally problematic. Ironically, the relevant difference between the two that prevents denying same-sex-incestuous marriage would also make it morally acceptable.

Second, if a different-sex incestuous couple could not reproduce (due to natural or artificial sterility), then this principle would allow them to get married. After all, they are no more capable of producing children than a same-sex couple.

Third, if it could be shown that a different-sex incestuous couple would have the same chance of having healthy children as a non-incestuous couple, then this would allow them to get married. After all, they are no more likely to produce children with genetic defects than a non-incestuous couple.

Fourth, given that the principle is based on genetic defects being more likely than normal, it would follow that unrelated couples who are lkely to produce offspring with genetic defects should not be allowed to be married. After all, the principle is that couples who are likely to produce genetically defective offspring cannot be married. Thanks to advances in genetics, it is (or soon will be) possible (and affordable) to check the “genetic odds” for couples. As such, if incestuous marriage is wrong because of the higher possibility (whatever the level of unnacceptle risk might be) of genetic defects, then the union of unrelated people who have a higher possibiity of genetically defective children would also be wrong. This would seem to entail that if incestuous marriage should be illegal on these grounds, then so too should the union of unrelated people who have a similar chance of producing defective children.

In light of the above, the incest gambit against same-sex marriage would seem to fail. However, it also seems to follow that incestuous marriage would be acceptable in some cases.

Obviously enough, I have an emotional opposition to incest and believe that it should not be allowed. Of course, how I feel about it is no indication of its correctness or incorrectness. I do, of course, have argments against incest.

Many cases of incest involve a lack of consent, coercion or actual rape. Such cases often involve an older relative having sexual relations with a child. This sort of incest is clearly wrong and arguments for this are easy enough to provide-after all, one can make use of the usual arguments against coercion, child molestation and rape.

Where matters get rather more difficult is incest involving two consenting adults-be they of the same or different sexes. After all, the moral arguments that are based on a lack of consent no longer apply. Appealing to tradition will not work here-after all, that is a fallacy. The claim that it makes me uncomfortable or even sick would also not have any logical weight. As J.S. Mill argued, I have no right to prevent people from engaging in consenual activity just because I think it is offensive. What would be needed would be evidence of harm being done to others without their consent.

I have considered the idea that allowing incestuous marriage would be damaging to family relations. That is, the proper moral relations between relatives is such that incest would be harmful to the family as a whole. This is, obviously enough, analogous to the arguments made by those who oppose same-sex marriage. They argue that allowing same-sex marriage would be damaging to family relations because the proper moral relation between a married couple is such that same-sex marriage would damage to the family as a whole. As it stands, the evidence is that same-sex couples do not create such harm. Naturally, there is not much evidence involving incestuous marriages or relationships. However, if it could be shown that incestuous relationships between consenting adults were harmful, then they could thus be justly forbidden on utilitarian grounds. Naturally, the same would hold true of same-sex relationships.

Reflecting on incestuous marriage has, interestingly enough, given me some sympathy for people who have reflected on same-sex marriage and believe that there is something wrong about it. After all, I am against incestuous marriage and thinking of it makes me feel ill. However, I am at a loss for a truly compelling moral argument against it that would not also apply to non-related couples. My best argument, as I see it, is the harm argument. This is, as noted above, analogous to the harm argument used by opponents of same-sex marriage. The main difference is, of course, that the harm arguments presented by opponents of same sex-marriage have been shown to have premises that are not true. For example, claims about the alleged harms to children from having same-sex parents have been shown to be untrue. As such, I am not against same-sex marriage, but I am opposed to incestuous marriage-be it same or different sexes.

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