One of the biggest practical hurdles to that sort of wealth distribution is simply that there is a whole world of people outside the US ready and willing to accept investment and residence from the owner class.
That's not a problem. profits made within a country can be taxed within a country. Stopping the export of capital is a legal/legislative issue, not a logistical one.
The rich have already left. The mythical class we're "punishing" arent tied to nations/peoples any more. Their assets are however. Their companies operate within nations. They wealth is spent in deals/properties/etc. within countries.
If a Koch brother lands on US soil he can be arrested and all of his assets seized. If he does a deal with a US company, all of the transactions can be subject to US law.
The rich have already left. The mythical class we're "punishing" arent tied to nations/peoples any more. Their assets are however. Their companies operate within nations. They wealth is spent in deals/properties/etc. within countries.
If a Koch brother lands on US soil he can be arrested and all of his assets seized. If he does a deal with a US company, all of the transactions can be subject to US law.
It's a matter of political will.