I do too. There really can be no other explaination because there is no logic at all to their thinking. Even when they clearly lose the arguement, they think they are still in the right! They can't admit when they are wrong, ever, which is 85% of the time (maybe even higher)......
I think liberalism is usually immaturity. And it becomes a mental illness when you take it to the extreme people do without questioning the logic of it.
Case in point: The father of the poor guy who was just beheaded blames Bush for his sons death. He calls the animals who did it "friends" of his sons.