There are always doors, it is never too late to educate ourselves, imho, in whatever needs to be learned to have peace. There is a possibly final war kicking off right now in Palestine, this issue is at the heart of it, along with something else we barely ever think about, energy, and it's relationship with profit, that I have written about for a long time now.
The war unfolding is entirely optional, yet it has no possible good outcome.
The only reason it seems to carry on with a life of its own is maybe everyone involved feeling like you do, hopelessness, the systemic outcome of a lot of people feeling this way is collective suicide.
This isn't a young mentality, it's an old mentality, a mentality that maybe thinks it doesn't have much to lose by it because it's own life is nearly over, so why bother, but it's also incredibly selfish because it's the future world for younger folk being thrown away.