Correct on #1 Which is why I like the UN in it's present form: Corrupt, cumbersome and ineffective. It's not something I fear. However were it to collapse, I think I'd be very concerned by the organization that replaced it and the man who leads it.
As to your second assertion, sorry I disagree. There is nothing left to do, no prophesy left to fulfill before the Rapture of the Church and the dawn of the Tribulation leading to the final seven years of this age.
If Bolton backed Moon, that's a good sign. Bolton said that he preferred more "secretary" than "general". The UN is in decline; Whoever follows Moon will have even less influence.