Well, they might as well be if you can't reason with them. There are some prime examples right here on HN who defy the imagination in terms of how far they will go to defend the indefensible, to come out swinging to make sure you realize that they will go to any length to stand for their 'principles'. And they probably believe the reverse is true as well, they see the rest of us as the ones that are terribly wrong, misguided and the subject of propaganda.