The real question is, does the UN or anything like the UN have role going forward, or must we suffer further degradations till we may arrive to some Pax Sino.
I've often speculated in my head about the desirabilty of closing down the UN to replace it with a "United Democracies" based as much on the carrot of trade as much as on any cudgels, but I think that's just a fantasy, you're always going to run into problems like "should Turkey be in or out of the EU and/or NATO, which way are they headed", and when do you ever let Russia or China in.