Why is USA trying to become the owner of the world?

U.S. does not like to be in second place and they can never become owner of the World because too many Foreign Countries own them. China owns about $340+ billion dollars in treasury bills,10% of U.S. shipping companies, etc. Japan owns about $320+ billion dollars in treasury bills too and so forth. I would hate to think how much the Saudis own. If Foreign Countries begin cashing in, say goodby to the U.S economy and its mighty military. If you notice, the U.S. will push only so far and thats it. Any further and its suicide.