There’s a quote[1] which makes the rounds occasionally and I think sums up the sentiment pretty well:
> Ok how about this:
> No more billionaires. None.
> After you reach $999 million, every red cent goes to schools and health care.
> You get a trophy that says, “I won capitalism” and we name a dog park after you.
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> Most billionaires net worth is highly centralised in the stock of the companies they founded[...] unless we are talking asset seizure I am not quite sure how you would do away with [billionaires]
Marginal asset tax rate of 100%? (Really, the main difference between that and the inheritance tax you favor is the timing.) The Wikipedia article[2] has a bunch of arguments for why that might be a bad idea, but it’s reasonably straightforward in principle.
[1] https://twitter.com/Mikel_Jollett/status/1241843944238923777