Ever seen Salon’s “Ask a Wingnut” column? In it, a right-winger tries to calmly explain conservative opinions to liberals. If you look at the comments, though, you can see the problem. Liberals squeal like stuck pigs if even exposed to a counter viewpoint.
But with liberals, they understand conservative opinions about as well as the monkeys in 2001 understood the obelisk. They shriek and get angry and want to smash it with blunt things. They try to reduce conservative opinions down to their own myopic values, but when unable they just conclude that conservative must be stupid and evil since liberals are incapable of understanding them.