> You'd have to ban them owning property or businesses in the country too. Otherwise they'd just stay but without citizenship or taxes.

This is why we need the estate tax (Paris Hilton tax or death tax as opponents like to say) to stay and probably increase in rate.

> For 2017, the estate and gift tax exemption is $5.49 million per individual, up from $5.45 million in 2016. That means an individual can leave $5.49 million to heirs and pay no federal estate or gift tax.

This is plenty generous. We should tax any estate beyond that at a minimum of fifty percent and close all loopholes.

I am not a big fan of income tax on businesses but I can see why we need it.