I don't believe in god, simply because there seems to be no reason to believe in a god.
I don't have anything against the belief in god, other than it's a bit delusional, there just seems to be better explanations for things claimed to be the work of god.
I am against people teaching the existence of a god like it's fact. I am against people claiming they know truths about the world when they don't. There is no evidence for god. There is no logical connection between existence of a god, and the things often presented by theists as 'evidence'.
That's simply it. There is no reason why I should think a God exists. So I don't.
- Patrick McBride