The actual position is much harder to dismiss. With neither party addressing the great moral issues of our time, who cares if one supports minor policy changes of some sort or another while the other doesn’t? That’s an example of the illusion of choice, not proof of it. Here’s Gore Vidal some forty years ago:
There is only one party in the United States, the Property Party…and it has two right wings: Republican and Democrat. Republicans are a bit stupider, more rigid, more doctrinaire in their laissez-faire capitalism than the Democrats, who are cuter, prettier, a bit more corrupt—until recently… and more willing than the Republicans to make small adjustments when the poor, the black, the anti-imperialists get out of hand. But, essentially, there is no difference between the two parties.