Submitting for opinions: If any nation were to 'go nuclear' either preemptively or through natural escalation, they would in one stroke become the new Nazis an

Submitting for opinions: If any nation were to 'go nuclear' either preemptively or through natural escalation, they would in one stroke become the new Nazis and hold this title for the rest of recorded history; no societies with direct or indirect recollection of the event would ever forgive or forget the decision. Given that no nation on this planet is truly ruled by one person, the Collective in Charge would have to make the decision to out-Hitler Hitler. Therefore, i believe that even if [Russia were to use a 'Nuc after its initial thrust into Europe failed/ the US were to use a 'Nuc after Russia's initial thrust succeeded/ China were to use a 'Nuc after the Asian Pacific joined together in opposition/etc], no rational state actors would respond in kind.