Everything is possible, but you have to be stupid to think that is as easy as "Pissing Off Putin"
No one will start a nuclear war just because they were humiliated, and if they do, then whatever you do would not matter, because that would be for a normal person to consider "Crazy"
On the other hand, what can
YOU do about it? If someone decided to press the button and launch the nuke and end the world? Nothing you can do, because you weren't the one on the button, so what if Putin or Biden press the button and end the world? You can't do nothing about it, then why worry about that? If you are that concern, maybe you should have run for office instead of preaching about doomsday scenario here on PDF. This isn't Grand Theft Auto you know??