Religion is myth. It's all what you believe don't force it on others. Oh, and do you really think universal space magic all mighty being is the BEST way to explain our creation?
God is simply a biased answer to the unknown.
No proof that he's real. No proof he's not. And atheist means they doubt there's a God, they don't believe in religion because they don't like how it adds up. Not that they proclaim no God in the streets like the -blam!-ing Christians
Small correction the actual definition of atheist is "a person who denies or disbelieves the existence of a supreme being or beings." Not someone who "doubts". The definition is in the word. The prefix (A) meaning not or without behind the word (theist) being "the belief in one God as the creator and ruler of the universe, without rejection of revelation". The wod itself means not a believer in a god.