Given how unstable and aggressive the US government is at the moment others having these weapons seems to be a good idea for balance. Not sure you are aware of the damage Trump is inflicting on international relations.

But personally I wouldn't like to die because some crackpot with the right connections can will rest-of-world to that fate, no matter their affiliation. This escalation of destructive power and the carelessness with which it is justified pretty disheartening to see. Good times create bad people?