But when the nuclear button is turned over to a psychopath like Kim, Trump or Putin, the psychopath may decide, if he's going down anyway, that taking millions of lives with him is ideal for celebrating his personal narcissism.
There's a very good reason the US military has the two-man rule in all dealings with nuclear weapons.
Okay. But let's suppose, for grins, that DJT#45 DID order a nuclear strike and two Air Force officers are charged to activate and launch an ICBM. One might HOPE that an average such pair of Army officers would usually have one who understood that Trump was an insipid psychopath.
I think it's as likely that BOTH American officers would turn their switches, reasoning: "Duuh! Prez Trump is telling us we gotta to do it. He knows what's best."
I think we're seeing that Russian grunts do not trust or value Putin so much. Their system may be immune to drunken Putin. OTOH Devotion to Trump, at least among 45% of white males, resembles devotion to the Korean Kim: We are severely fortunate that Trump was never tested as Biden is being tested now.