Many people argue that you cannot disprove the existence of god.
While this is a revolving argument on the surface, actually this is a very simple practical way out of it.
Every god related story can be shown to be fiction, when tested against other god related stories. There are no facts that prove the existence of god. But lack of proof of existence is not the same as proof of non-existence.
There are an infinite number of possibilities of which I can only prove a finite number.
So the chance of anything being true is a finite number divided by infinity, and anything divided by infinity is as close to zero at it’s possible to be.
So given that nothing is actually true, then it’s absolutely certain that everything including god does not exist.
In your face nihlists.