That is not evidence that God exists, but only that people have believed in God.
How is that logical? If I say the sky is purple and all of you are seeing it as blue as an illusion is it logical for me to ask you to disprove it? A lot of this comes down to statistical likelihood. And recent research (and the history of modern era research) has the odds of a Christian-like (or most organized religion Gods) God existing going down and down past the lows they are already at.
Science books are evidence that people believe devinchi existed, what is your point.
Statistics never Get beaten?