Have you ever experienced racism or do you have friends who have experienced it? Imagine telling your friend what they went through was simply evolution.
Murdering all of the men of the losing side of a war and taking their women as slaves to bear more of your children is evolutionarily adaptive - and I would presume that as a result I'm descended from at least one person who did so, and so would be the person I was talking to in your scenario.
"Adaptive" and "morally horrifying" can both be true of the same behaviour.
I hope that the things I consider moral win in the long run, but that's unfortunately not guaranteed.
Yes I have experienced racism, of various types and many times over the years.
The fact that I understand why it happened doesn't harm me. Does it make you feel better to believe that the bad things that have happened to you are due to spiritual evil? Personally I find a mechanistic, value-neutral explanation more conforting (and far more useful since it's, yknow, correct).
"Adaptive" and "morally horrifying" can both be true of the same behaviour.
I hope that the things I consider moral win in the long run, but that's unfortunately not guaranteed.