"So, the tribe recognized that those who carried their load and were able to contribute above their need were desirable members of the tribe. They were selected for mating and their genes reproduced."

Religion is a program that corrupts this natural evolution. Instead of focusing on doing good works for goodness's sake, the breeding qualities of the religious is blind obedience, the protection of those who prey on their fellow humans - the Catholic pedophile scandal is one well known example - and the tithes.
Which is why they keep saying they have the only moral code. Religious morals is just another kind of obedience to masters who have done nothing to contribute. We don't need priests to have religion, or popes on thrones of solid gold telling us money is the root of all evil, so hand it over.
Yet the sheeple surrender to them, embracing hatred and discrimination that would be rare if we still held to doing good for moral reasons here in the real world, instead of the fantasy world.

Proof that religion is a social construction.