The U.N needs us..we Don't need them. I propose moving the U.N to France or Germany or some other country and let us stiff them on the bill for about 20 or so years as we play a minor roll.
Also being from NYC I can tell you that having the U.N here is a royal pain in the a*s.. the traffic caused by it is terrible . The diplomats have immunity from..everything. the park wherever they want..do whatever they want..some have even committed crimes...and we can't touch them. They take full advantage of these liberties . Having diplomatic licence plates on your car is a licence to break our laws without penalty.
So let some other country deal with it.
Do't rush it. China is waiting in the wings.