That wouldn’t end the war, that would result in the continued wholesale slaughter of eastern Ukranians by their own government

Did Ukraine do that? Genuine question, not really educated in the pre-war history. Sounds a bit unbelievable to me at first glance. Feel free to provide reading material.

Please stop thinking about geopolitics in childish terms of maniacs and minions, life is not a Marvel movie.

Of course not. I wanted to keep it short and on point.
However, war will continue as long as there are forces at play who want the war. Putin is certainly one of these war-driving forces, as well as his minions his top-people in military and politics. Given the expansionistic approach, the numerous threats, even against children, creates a pretty insane picture.