What do you mean "your own"? The Internet in Europe is Europe's, the Internet in Africa is Africa's etc. to the extent that it is not that of the U.S. at least. Do you think Detroit asks Germany for permission when they want to make a new car, just because Germans invented the damn thing? The United States generally only controls their particular fraction of the Internet, but they also sit with the administrations of most non-country TLDs. But the rest of the Internet could just fire up their own set of DNS root servers etc. if they really wanted to lose U.S. control. But then they would also lose U.S.-based services, and some of those are pretty keen...