Besides cosmological arguments (no need for a god creator, science can explain universe out of nothing, quantum cosmology models), evolution, and there is a moral argument for not believing in God. God rather than giver of morality has no morals, as numerous examples abound in the bible, and the commandments don't mention pedophilia, genocide, rape as crimes, it all about not worshiping other gods. Even if God existed we should resist him as we should resist any authoritarian megalomaniac (as the one currently residing in White house), so hail Satan since he is the first rebel.

GOD has probably engineered the greatest human genocide, that of childbirth. The death of mothers, newborns and the unborns.

We all know penguins could never show up coming that far, and kangaroos would never have made it from Ararat back to Australia. Strange that none were found dead along the way back later too. One of the strangest things to me is the Ark itself looking like a great big boat. Why a boat? Where was it going to sail to? It's measurements would make it seem like a great big box and it's one window would have guaranteed that everyone inside would die of methane poisoning. There's also not enough people on the Ark to feed and take care of the animals let alone throw their crap out that one big window.

The biblical god is a murderous mafk that's for certain.