I have one right-wing relative that I can have civil political conversations with. But his right-wingness is tempered with a sharp intelligence. He actually voted for Obama -- not because he agreed with his politics (he doesn't) but because the Republicans ran Sarah Palin for VP. He doesn't have much use for ignorant stupidity.

The rest of my right-wing relatives, like most right-wingers apparently, can't string two logical thought together to save their lives. Their conversations consist of idiotic slogans, and they just get made when you ask them to support what they are saying, or ask what happens next (as in, how do those policies actually play out in real life). I just don't engage anymore.