Proposal : stop the accumulation of all wealth into fewer and fewer hands through inheritance taxes.

I’m not terribly concerned about wealth accumulation/inequality. Maybe I should be; OP certainly does not make a compelling argument. But I accept a compelling argument could be made.

I recommend reading Piketty, Mayer, etc., and tying to make that argument. And maybe consider how much the inequality is a symptom of problems vs a problem in and of itself. There may be more important issues. I’m going to start owing msmith royalties: