The problem with formal religon is that it legitamises hatred of those who are different.
Of course this does'nt mean that all religous people are full of hate but those that are feel fully justified, and even judge other people for failing to share their hatred.
I would never judge a religous person without knowing them but I do fear the mindset that encourages predjudice, this goes for all branches of religon, I know christianity seems to bear the brunt of most of the comments but to me all religon is equally irrational and frightening.