Atheism is just the opposite. It's a lack of belief, pending evidence. It has no doctrine, either pragmatic, idealistic or metaphysical.
No, it is the belief that there is nothing beyond cause and effect.
You cannot prove that cause and effect are the one and all so it must be a belief, a kind of religion.
The lack of "evidence" has nothing to do with disproving God.
It is a hollow idea with no substance.
But religions are what they are, they don't need proof.
I can never be satisfied with a belief or religion, that is why I could never be an atheist.
And I have experienced what it means when your individual consciousness becomes more aware of the Cosmic Consciousness, nothing in life can compare to that.