Read my comment - it is completely irrelevant to the discussion being had about the linked article, and no one on the planet is suggesting a 20% wealth tax. That is my point.
It does change that there is a multiplier. Even 5% is likely a deathknell for all but a couple percent of assets owned by the most aggressive ‘sharks’.
A good way to make owning anything unaffordable though! The carve outs would just defacto set a cap for normal people. No more than one house, etc.
You can still own millions and billions of dollars of things, but you'll have to shrink your money pile over time to pay for those things if you don't have a source of income.