Why? By all measures the world is better decade after decade.
Poverty is down, famine is down, average life expectancy is up. NATO and MAD are doing their job and no world War 3 has broken out, and given how support of NATO is enough to make Russia unable to conquer Ukraine, so they certainly aren’t a global threat.
We have the technology to fix any problem we currently have, and past trends say we will do it, just takes some time.