It is interesting to ask whether there's any general reason why being religious might make you do nice things or indeed nasty things. It's possible that people do nice things because they're religious. One reason might be they're hoping for a reward in Heaven, which is not a very noble reason.

Evolution is fundamentally hostile to religion.

It's a flaw in our argument, for sure. By any reading of evolutionary theory, creationists ought to have died out ages ago. They serve no function in the planet's ecosystem, and no other species has survived so long while in such fundamental disagreement with observable reality. If I wasn't such an ardent believer in secular materialism, I'd wager this is really troubling Darwin in the afterlife.

The human psyche has two great sicknesses: the urge to carry vendetta across generations, and the tendency to fasten group labels on people rather than see them as individuals. Abrahamic religion gives strong sanction to both-and mixes explosively with both. Only the willfully blind could fail to implicate the divisive force of religion in most, if not all, of the violent enmities in the world today.

I don't shout people down. I argue people down, perhaps.

Science replaces private prejudice with public, verifiable evidence.

Ideally, I'd like everybody to be secular.