The surprising thing is that the boomers who are still in power and have high influence are not responding to events that their parents went through and have direct memories (and trauma) of.
They allow the same cycles to return: the large war and basic instability in security for decades.
Unpacking it a bit more: if you don’t care about humanity but just your immediate family or yourself it still makes no sense. What about your grandchildren and their future?
Or your personal life if you still have a few decades to go?
Living during large wars is no fun and brings hardship. Why you don’t care?