I think the rest of these points are colorable and appreciate you saying them, but
politicians offending foreign countries is not, in any sense of the word, an exceptional situation that demands exceptional action. Reagan famously joked that he was about to nuke the USSR, triggering an escalation in the alert state across East Asia.
Threatening to take territory from an ally by force is far beyond “offending foreign countries”, not precedented to my knowledge, and very bad.
This is a problem with profit-maximization, or large corporations, or something, not billionaires — Facebook and Walmart would face the same incentives and do those same things even if their ownership were more distributed.