I doubt that even the capable John Bolton can straighten out this mess (the UN) even though he is trying. The whole thing has to be tubed. The US, as usual, has to take the lead in this. Kick them out of New York. Let them relocate in some third world hell hole like Mogadishu. Form a new organization like "United Free Nations". Make it a little harder to get in.
Bolton, I agree is capable, but he's only there for damage control.
The UN rabble is intractably hostile to our interests. Unfortunately, the Dutch have a higher probability of expelling all their Muslim guests than we have of expelling the UN.