“This would never work in a country that isn't a tax shelter from other nations,” but isn’t Manhattan N.Y. U.S. also a tax haven to foreigners, other then U.S. citizens? And doesn’t the Cayman Islands support competition among, within and between taxing districts of the world, for which they attract wealth? Maybe it’s the competition among governments that makes it work in Cayman, giving money owners a better deal then they get else where.
“Somebody”, yes… if direct then apportioned. Tax somebody with competition, perhaps maybe best.