I have previously written at some length about why atheists can’t write good stories. If you want to read a more in-depth treatment, there’s Why Moderns Always Modernize Stories and Why Do Moderns Write Morally Ambiguous Good Guys? However, for convenience, I’ve come up with a very succinct version:
Unless an atheist pretends that God exists in his story, his story is set in Hell. There are no good stories in Hell.