The stupid billionaires need to realize federal wealth taxation is possible.
The federal government can get around the constitutional capitation proportionality limitation by setting higher wealth tax rates for poorer states and then allowing a full income tax credit for the higher wealth tax rate amounts.
Mississippi rich folks would pay a higher wealth tax rate on April 14th and have the excess (and maybe a bit more) credited to their April 15th income tax amount.
These guys are paying to be eaten last.