The idea is essentially that governments are made non-territorial, and you choose whatever government you want to live under without having to move. The various governments have contracts between each other to resolve disputes between themselves and their citizens, and by signing the social contract you agree to the terms provided by the government.

I find that this is the only solution to the problems of social objectivity, because instead of trying to reconcile all differences under one government that has a monopoly over a geographical area, it does not try to resolve the social differences, and simply allows each individual the freedom to choose they government they want.