What's the Harm in Believing?
You hear this a lot. Theists want to know why atheists think people ought not to believe in God (or anything supernatural). Books could be written on the subject, but I will make just one point. Belief in God (I'm thinking here of the Abrahamic tradition) requires you to set aside your perceptions and rational moral judgment in favor of cliches like "God moves in mysterious ways." If you see bad things being done, know that they only appear to be bad from your worm's eye view. If you knew what God knows -- which of course you cannot -- you'd understand. In my book, that is enough to condemn theism.