While the United States does have numerous third parties and many voters now register as independents, politics is dominated by the Republicans and the Democrats. While there are independents in office here and there, independent voters still identify strongly with the two parties. They are also almost entirely limited to voting for candidates from these two parties.
My own party affiliation is Democrat, although it is a very weak affiliation. While I do share some of the values professed by the party (such as support for education and protecting the environment) my main reason for being a Democrat is that Florida is a closed primary state. If I did not have a party affiliation, I would be limited to voting between the candidates picked by the Democrats and Republicans. That is not acceptable and I regard the Democrats as less evil than the Republicans. At least for now.
While people do sometimes change parties (Reagan started as a Democrat and ended as a Republican, while Hillary Clinton took the reverse path) most people stay loyal to their parties. Trump has tested the loyalty of some Republicans, but it seems likely that most will vote along straight party lines. Likewise for Hillary and the Democrats.
Being a philosopher, I endeavor to operate from consistent moral, logical and political principles rather than merely embracing whatever my party happens to endorse at any given moment. Because of this, I could end up leaving the Democratic party if its professed values changed enough to be broadly incompatible with my own. This can certainly happen. As Republicans love to mention, their party was once the party of Lincoln and Teddy Roosevelt. As they also love to point out, the Democratic party was once an explicitly racist party. Now, of course, both parties are very different from those days. Teddy Roosevelt would be appalled by the current Republican party and the Democrats are now regarded as a civil rights focused party that is very welcoming to minorities (and certainly welcomes their votes).
While political parties presumably provide some benefits for citizens, they mainly exist to benefit the politicians. They provide politicians with resources and support that are essential to running for office. They also provide another valuable service to politicians: a very effective means of cognitive and moral derangement. Like other groups, political parties exploit well-known cognitive biases, thus encouraging their members to yield to irrationality and moral failure.
One bias is the bandwagon effect; this is the tendency people have to align their thinking with that of those around them. This often serves to ground such fallacies as the “group think” fallacy in which a person accepts a claim as true simply because their group accepts it as true. In the case of political parties, people tend to believe what their party claims, even in the face of evidence to the contrary. In fact, it is well-established that people often double down on false beliefs in the face of objective evidence against this belief. This afflicts people across the political spectrum. The defense against this sort of derangement is to resist leaping on the bandwagon and train oneself to accept evidence rather than group loyalty as support for a claim.
Another bias is the tendency people have to obey authority and conform. Stanley Milgram’s famous experiments in obedience purport to show that people are generally obedient by nature and will obey even when they also believe what they are doing is wrong. This derangement forges people into obedient masses who praise their leader, be that leader the objectively unfit Donald Trump or the morally problematic and Machiavellian Hillary Clinton. Since obedience is so ingrained into humans, resisting is very difficult. In fact, people often think they are resisting authority when they are simply bowing low to some other authority. Being disobedient as a matter of principle is difficult, although people such as Socrates and Thoreau do offer some guidelines and inspiration.
Perhaps the most powerful bias here is the in group bias. This is the natural tendency people have to regard members of their group as having positive qualities while seeing members of other groups as being inferior. This tendency is triggered even by the most superficial of group identifications. For example, sports teams stand for nothing—they do not represent moral or political principles or anything of significance. Yet people routinely become obsessive fans who regard their fellows as better than the fans of other teams. This can, and does, escalate into violence. Violence of the most stupid and pointless sort, but real violence nonetheless. In the case of politics, the bias is even stronger. Republicans and Democrats typically praise their own and condemn their competition. Many of them devote considerable effort scouring the internet for “evidence” of their virtue and the vice of their foes: it is not enough to disagree; the opposition must be demonized and cast as inferior. For example, I see battles play out on Facebook over whether Democrats or Republicans give more to charity—and this sometimes becomes a matter of deep rage that has ended friendships. Since I prefer to not let politics or religion end an otherwise fine friendship, I make a point of not getting engaged in such battles. There are, after all, only losers in those fights.
This bias is extremely useful to politicians as it helps fuels the moral and cognitive derangement of their supporters. The most pronounced effect is that party members will typically rush to defend their politician over matters that they savagely attack the other side for. For example, Donald Trump is, as a matter of objective fact, unrelenting in his untruths. His supporters who otherwise regard lying as wrong, rush to defend and excuse him, while bashing Hillary as a liar and a crook—despite the fact that Hillary says untrue things far less often than Trump. As should be expected, Hillary’s devout backers do the same thing—excusing Hillary for things they condemn about Trump (such as sketchy business deals).
As a matter of rational and moral principle (and consistency), a person who regards lying as wrong should take liars of both parties to task and criticize their lying appropriately. To do otherwise is to be irrational and morally inconsistent. The same should apply to other matters as well, such as sketchy business deals. To avoid this derangement, people need to train themselves (or be trained) to assess politicians as objectively as possible to avoid being morally and cognitively deranged by the undue corrupting influence of party.
This is not to say that a person should fall into the trap of false equivalency or regard any misdeed as equal to any other. Simply saying “they are all equally bad” when they are not is also a failure of reason and ethics. Using the example of the 2016 campaign, while Trump and Clinton both have their flaws, Clinton is objectively better than Trump in regards to qualifications for being president. As Republicans argued when Obama was running in 2008, experience is critically important and the presidency is not an entry level political job. Naturally, I expect some to lash out at me over such claims. Some will rush to praise Trump and tear apart Hillary. I also would expect Hillary backers to be displeased by my fairly negative view of Hillary (while Hillary haters will probably have the mistaken impression that I am all in for her). Such things will actually help prove my point: people tend to be ruled by their biases.
I am not advocating that people become apathetic or abandon their parties. Rather, I want people to hold all politicians to the same standards of criticism rather than rushing to defend their side simply because it is their side and bashing the other simply because it is the other. This would, I hope, force politicians to actually be better. As it now stands, they can be rather awful and simply count on the derangement of voters to work in their favor.