If it does not concern us, then NO.
But how many places in the rapidly shrinking world do not concern us? No, I do not belive in one world government, unless it's run by the U.S.A. If we want to remain the dominat player in the world, we sometimes have to step up and get dirty. Teddy Roosevelt understood this, and America became a world power to be reckoned under him. Our influence was at an all time high at the end of the first world war, but we withdrew into isolationism. Instead of taking the bull by the horns, we withdrew into our own little sphere of influence. We let our military drop to 17th place. By not participating in the League of Nations, we allowed Italian aggression in the Horn of Africa. Japnese aggression in Mancuria, and mainland China. And finally apeasment to Hitler over the Sudetenland, allowing the Cezh's to be swallowed up setting off the second world war.
We are the only Super Power left. We can rapidly become a has been second or third rate power. All we have to do is become isolationists, muttering about "One World Government Conspiracy", or quitting the U.N.
No I do not like the U.N. But until there is a replacement, it is the only show in town. And if handled properly, as in '90/'91 where we build a coalition it can work to our advantage.
The alternative is to put on your tinfoil hat, bury your head in the sand, and hope you don't get stepped on in the scramble to replace the United States as #1.