When I saw Avengers Endgame, seeing Thanos eradicate 50% of population for his perspective of “greater good” was chilling. With escalated tensions between supe

When I saw Avengers Endgame, seeing Thanos eradicate 50% of population for his perspective of “greater good” was chilling. With escalated tensions between super powers, I fear one crazy dictator may push a button to drop a nuke at a populated US city in the name of “most efficient way to reduce warming”. That escapes to a nuclear war. Nuclear war from physics would work as the smoke would block the sun having a cooling effect, and less people would mean less emissions. But people would need to live underground and it would be an absolute shit life worse than living in a warm world. Life is short, but I have this intrinsic fear that humans may perish before they figure out how to become a multi planet species.