Should the U.S. leave and stop funding the United nations?

no

How then America will get international support for all its Adventures and Misadventures in the world over?

No but we should stop funding them
Every nation should pay the same, there are 163 members of the UN we should only pay 1/163 not 1/2

Let it do that. And see the consequence.

Yes. The U.N. building would make a great condo. The $$Millions that Taxpayers are wasting on that organization every year is criminal.

Yes.

1) No.

2) Funding levels should be made contingent upon the UN behaving to our liking. The anti-Americanism must stop.

yes, NY needs the building for the homeless.

Sure. Countries around the world seem to putting china, Russia and Germany as the countries that will lead the UN anyway.