Your link is about the United Nations. Your original thought was that we do not need other countries. Two different scenarios.

If you are saying we do not need any help, then we will have a heated conversation, because I can show you how dependent we are on allies, pacts and treaties with others.

If you are simply speaking to our share of United Nations budget, I would need to do some research to see exactly the method of determing hat. You will admit, we got more money, thus we pay more, but still need to check how it's done before saying more.

So which is it ?