You also have to look at this in a Economic way.
The United States is a Economic Superpower(the only economic superpower)
... I know everyone will say China, Japan, and India are as well... You're wrong..
The reason that they doing so well in the Economic Depart is... The United States has supreme purchasing power over every country in the world. With a per captia GDP(Per Person Income) of 37,000$ each. That is crazy!! That basically means on average the normal everyday American makes 37,000 dollars a year.
http://www.photius.com/rankings/gdp_per_capita_2003_0.html
Compare Japan($28,000), China($4,400), India($2,540)
Tell me, why would you destroy the biggest money making country in the world.. People may hate the United States. But they sure as hell love our dollar..
The United States is in a rare state with modern countries, we hold too much economic power to destroy, and in turn.... We provide that power to other countries. Yes we are a economic bully, but hey. They would be to if they were as powerful as we are.