The U.S. is a popular tax haven for people in other countries, and the City of London is the center of a whole network of tax havens. It's not just remote islands looking for a way to scrape by.

A great book on how it all works is Treasure Islands by Nicholas Shaxson.

What percent of US states are not "self-sustaining regions", by the measure of net contribution to the federal coffers?

Let's blame the people then, not the colonizers who got this whole system set up in the first place, eh?

okay, what should we do about all the people on the island then?

With what money?