That's not going to happen. Even if Putin is removed, what replaces him is likely to be even more fascistic.
Then we’ll deal with that when it comes. In the meantime sitting on our hands while Russia re-ignites the Cold War and tries to rebuild the Iron Curtain is a cowardly act of appeasement.
And if Russia does slide into fascism then having it surrounded with our allies and friends is a good way to keep their imperialism isolated.