I don’t think it’s that they don’t listen to anyone. People generally are open to hear different views as long as it’s done in good faith rather that in the form of accusations. Nobody wants to hear from someone who openly treats them as second class citizens. If you treat them with dignity and are open to hear their views as well you’re far more likely to get them to reflect on their own views too. Daryl Davis is a good example of this.
Probably a large scale conventional missile strike on Russian military targets Putin himself being the number one priority. He knows that the western intelligence agencies know his whereabouts at all times so unless he’s going to live in a bunker for the rest of his life he knows that nuclear strike will literally be a suicide.