You do realize that part of being an American is having a right to your own opinion? I don't mind people telling me that they don't agree with some of my comparisons and comments. The problem with this board, and the reason why the participation is so low, is that so many of these threads become extremely personal and vindictive. Someone isn't just wrong, they are a dumb ****ing asshole who should punch themselves in the face if they don't change their opinion to match the majority opinion.
There's no agree to disagree. If someone says, "fine, to each their own", it's not uncommon for the response to be along the lines of, "Yeah, if you're a dumbass". If you want to know why people dig their heels in, it's that kind of thing.