Actually, I just remember that my brother was picked on and beat up a couple of times at least because he's an atheist. I can only imagine how much worse it would have been if the school actually approved of singling out those that don't pray, and EVERYONE knew that he was non-religious.
Now, my brother is a bit militant about his atheism, or at least he was. One of those fanatics the post was originally about.
But the bullies that beat him up were just as fanatical, if not more so for getting physical.