I am an atheist because the god stories I was raised with (Protestant Christianity) were so contrived. The story of Christ having to live here as a man, be persecuted for his philosophy, tortured and killed, then resurrected and returning to heaven just so we, his creation, could go to heaven is ridiculous.
If there is a god and he’d have periodic communication with humanity explaining the rules for entry into heaven, I’d go along with it. Asking me to believe a multi-thousands of years old collection of books which claim there is a god is just not going to do it for me. On top of it, this book collection (Bible) tells stories which are supernatural (talking snakes, great flood, parting of the sea) which go against the “rules” of the natural world which this god was supposed to have created.
It would take me multiple pages to describe all the scientific evidence against a creator and I am not even a scientist. I don’t get comfort from stories. I get comfort from facts.