Are absolute atheists prone to deny God because they refuse the fact that they don't know everything? Pride?

I understand the argument that "I can't find reason or enough reason to believe." Yet to make an absolute statement like, "There is no God," appears very arrogant. In order to say such an arrogant thing, one would have to know all things, being a god themself. Having limited knowledge, should such an absolute statement be made? I understand that people design fairy-tale and fictional characters, but why put the idea of One who designs all with the ones whom we have designed? When we say that we evolved, like the evols say, are we not really saying that we made ourselves and enhanced ourselves? Isn't this being a god? This would explain why this theory fits so well with atheism- pride of our limited knowledge and being our own god's who evolved ourselves. Notice how very absolute atheists are about things which they do not know of, and how arrogant and smug they answer questions, believing in their own self-deceptions. Just my view.