Agree with everything you say. I mentioned WWII because during WWII Polish elites were systematically slaughtered by both invaders (Nazi Germans and Soviet Russia) - example https://en.wikipedia.org/wiki/Intelligenzaktion, but also https://en.wikipedia.org/wiki/Katyn_massacre act of mass murdering of Polish officers who were mostly coming from Polish elites...

I have very similar thoughts about wars, I believe the mainstream narratives are only sliding on the surface of real underlying reasons behind wars.