One of my pet peeves is hearing people refer to atheism as a religion. This tends to stem from a misunderstanding of the strong version of statement of atheism. Some atheists state, “I do not believe in god.” Some state, “I believe there is no god.” Some go even further and state simply, “There is no god.”
I have personally not met an atheist that would refuse to listen to new evidence on the subject. I have a hard time imagining what would constitute real rational evidence for the existence of a deity. But, I have a difficult time imagining a deity. I will consider any such evidence if it comes up.