I mean no one wants a devastating war, but in the long term we have to consider that Putin wants to fuck the world regardless.
Ukraine is not the end of what Putin wants. We know that he wants at least the entire bloc Ukraine is a part of. And given how far he was willing to push it for Ukraine, he's not going to be any less brutal about the rest. We can probably safely assume it only gets much worse from here.
But Russia has also spent the last 10 years fucking with every industrialized nation on earth, from hacking infrastructure to outright murder on foreign soil.
Our family has a friend who was in a deeply abusive and controlling relationship. She finally got out by opening three new holes in him with a shotgun. She's spent the last 20 years in therapy and fighting off depression and substance abuse. But then there are other people who didn't get out, and they were the ones who ended up dead. You're fucked either way, but maybe one of those results was just a little better than the other.