The existence of a God isn't incompatible with the laws of the universe, because if God exists, then it exists outside this universe. As such, it is a textbook definition of a non-falsifiable concept, and you're setting up a strawman.
As for religion, the important aspects about it aren't the supernatural beings that judge us. God and the devil are a reflection of our "soul", and religion is a recipe for morality, being simply tradition that found a full proof way to be passed between generations. Even if you don't believe in God, you should believe in the power of tradition to pass on knowledge in the human culture.
I've also replied to another comment that (IMO):
1) All humans are religious, if we define religion as faith in non-falsifiable theories, with the existence of a God not being required;
2) We are not enlightened enough, and we don't have enough resources to base morality simply on observations of the natural world.
In general, if you're going to be an atheist, might as well be the kind that understands our history. Hubris isn't good, and we aren't more enlightened than past generations, we just have more resources and slightly better traditions; although here I'd add that social progress isn't guaranteed, given how ancient civilizations crumbled.