The problem with religion is that each religion teaches its member that they are right. Therefore, those that are not members of that religion are wrong. This right and wrong wrong is not the "I got the math problem right and you got it wrong, now lets go eat a pizza" kind of right and wrong. It is the "I am right, I am a believer of the one true faith, I shall go to heaven" kind of right and "You are not rigth and a beleiver of the one true faith, you shall not go to heaven" kind of wrong. It can then be concluded that those that are not believers and who will not go to heaven are "evil" and therefore the enemies of those will. Remember the word used to decribe the crusaders as they went to conquer the unbelievers. They were the "Rightous"

Religion teaches its members to be close minded. "You are right, they are wrong. Peroid!" no further need for discussion. As a general rule the more "religous" a person is the more close minded they are. This close mindedness tends to transfer over to their general life as well and it becomes very difficult for these people to admit that they are wrong about anything. If they are wrong about one thing they could be wrong about religion and this simply isn't acceptable. Therefore, its simply easier to believe they are never wrong.

Of coure I do not mean to say that this applies to everyone that believes in God and that anyone who goes to church on Sunday is a close minded ass. Just that this issue of "right and wrong" is what is fundementally wrong with religion.