Don't get me wrong, I would love the UN (as would the average US citizen) if it did what it was intended to do.
However, the average US citizen is tired of being the World's Welfare Donor.
It started after WWII, when the US forgave all the debt incurred by the Marshall Plan.
Now, we exist under a modified Marshall Plan, we allow nations to dump goods, undercut prices, and pirate US inventions, all in the name of World Peace.
It's easy for Japan and Europe to have booming economies, the US would rock the world if we just withdrew all our troops, personnel, equipment, and supplies from the various and many countries we help support/protect.
Not to mention wasted foreign aid to countries that leaders either steal or waste it.
World Opinion is low because the US overlooks one important aspect, NOBODY loves their loan agent.
Sure, they are our best buddies when it comes time for handouts, benefits, and other perks, but once that "loan" check is cashed, they become our biggest bashers and haters.
I believe we should learn our lesson from the USSR, and cut loose all the umibilical cords before it's too late.
Why don't we? Unfortunately, we realize that without our help, the UN would be totally unable to perform as peace keepers and protectors of the peoples of the world.
Hell, the United Nations STILL hasn't settled the Korean War, and that came to a stand-still 50+ years ago?
There really is only two choices for the United States, return to isolationism or take the world in hand...
Looks like Bush has chosen the latter, we'll see what history shows!