The point is that most of the nations of the world arent' free in the sense that America or Great Britain (to give some examples) are. There are too many corrupt and/or despotic governments for any "world body" to work. If nations have a disagreement, they should go to Switzerland or some other neutral country, sit down, and work it out.

The US doesn't support the UN right now because it has proved completely ineffectual in the past, and the sole reason for this is that too many of the members are anti-freedom, anti-human rights, down-right evil nations, which is why I think the US should leave the UN entirely.