Russia will not tolerate a government hostile to Moscow, let alone one that is being armed, funded and trained by NATO.
Ukraine will cease to exist before that happens. That fact doesn't seem to sink that thick skull of yours.
Zelensky already offered neutrality but you always ignore that. And Putin rejected it because this was never about NATO, but about his desire for Ukrainian land and to be able to dominate Ukraine. This is brought out even more since Putin is not just satisfied with what he now has, but is demanding that Ukraine withdraw from even more land before he is ready to even start negotiations.
Ukraine, after many centuries, has freed itself from Russian domination and will not accept it again. Let that sink into your head.