Nuclear weapons have been around for 70 years and the world has come through much more dangerous times that it is now. There was a point when politicians thought nuclear war is actually winnable and it is a matter of 'when' than 'if' . There were actually (short) periods when command and control of nuclear arsenals was given to commanders in the field. Think about that for a second . The risk today is far, far lower than 30 years ago.
No, sadly it’s not far, far lower today. Now we have two bitter rivals in India and Pakistan both nuclear armed. We have a resurgent and highly nationalist and paranoid Russia targeting the West in highly provocative ways, we have a nuclear armed Israel who are becoming increasingly diplomatically isolated from the west, and to top it off we have a wildly divided America led by a President who has already questioned why the US doesn’t use its nuclear arsenal.
Oh and just in case that wasn’t enough, we have a newly expansionist China who are about to become a superpower and who are already pushing a situation in the South China Sea that will either require them or the US to back down and lose massive face in front of the world, or go to war over it. Plus there’s a very good chance that Japan might finally join the nuclear club before too long if they determine that they can’t trust America to be a reliable defense against the Chinese (and they probably can’t at the moment).
The world is seriously fecked right now.