I struggle with some things
I don't disagree with your comments or Pournelle's. Particularly the part about Marxism/Communism/Socialism enevitably leading to totalitarianism and human misery.
When I was very young (12-13) and idealistic, the idea of "from each according to his ability and to each according to his need" had some appeal. As I got older and learned more about people it became obvious that it would never work and it would be oppressive and intolerable to any people whose basic needs have been met.
On the genocide issue, I have long wondered if our treatment of native Americans didn't qualify as genocide. I remain undecided.