The US could just tax the rich more and spread the extra wealth gained through offshoring. But no.
Other than that it is very hard to tax profits generated in another country.
But it's easy to tax personal wealth. It's new and different to tax wealth instead of income but it's not totally unreasonable IMO.
EDIT: also, the highest income tax rate in the US has dropped significantly since the 1950s. Maybe that was what made America great then?
No, it just means personal wealth moves abroad.
And maybe a mutual taxation reciprocity agreement with other like minded countries could defeat those games?