It’s pretty clear that the people of Donbas, Crimea, etc, do not want to be ruled by this Ukrainian government

Maybe if you listen to Russian propaganda only. I have both Russian and Ukrainian family and it really isn't that simple.

Your "peace" would be stripping any self determination of a sovereign country to appease the imperialist nuclear power on their border. Even after they have shown not to be trustworthy.

Ukraine might as well just surrender the entirety of their country instead of being a foreign ruled satellite state like Belarus.

Slava Ukraini