Society bends over backward to be accommodating to religious sensibilities but not to other kinds of sensibilities. If I say something offensive to religious people, I'll be universally censured, including by many atheists.

People like to trace their ancestry.

Faith is not the opposite of reason.

The God of the Old testament is arguably the most unpleasant character in all fiction.

Disagreements between incompatible beliefs cannot be settled by reasoned argument because reasoned argument is drummed out of those trained in religion from the cradle.

A gene might be able to assist replicas of itself that are sitting in other bodies. If so, this would appear as individual altruism but it would be brought about by gene selfishness.

You are born into a dangerous world, there are all sorts of ways in which you could die, and you need to believe your parents when they tell you don't go near the edge of the cliff, or don't pick up that snake, etc. There could very well be a Darwinian survival value in that sort of brain rule of thumb. And a by-product of that could be that you believe your parents when they tell you about the juju in the sky, or whatever it might be.