You can count on Stephen Walt to address the big questions, including the destruction of Ukraine:
Will someone get serious about real diplomacy, and make Putin an offer he’s unlikely to refuse? Instead of building more bases in Eastern Europe, the United States and its allies should be working to craft a deal that guarantees Ukraine’s status as an independent and neutral buffer state. And that would mean making an iron-clad declaration that Ukraine will not be part of NATO. (Just because many Ukrainians want to join doesn’t mean NATO has to let them.) Recent proposals for a deal lack that essential ingredient and aren’t going to solve the crisis.
A “Finlandized” Ukraine might not be an ideal outcome, but it is better than watching the country get destroyed. Putin may reject such a solution, of course, but surely it deserves a serious attempt before things get even worse.