You do realize that most American millionaires/billionaires are first generation millionaires/billionaires, don't you? Inherited wealth dissipates after a few generations. No need for a stratified, bureaucratic government to step in.
Government can give you nothing that it does not first take away, Willie Boy. I guess, like all Bolsheviks, you don't mind government taking away as long as it is from somebody else to give to you.
Tell it to the Rockefellers/Kennedys.
Why is this germaine to the converation? It's no one else's business what you do with your property. It is immoral to steal property, no matter who it belongs to or for how long. Either property is privately held or it belongs to the government and you are only allowed to keep it under certain conditions, those decided at their pleasure.
To engage a thief in the details of his plunder is to miss the fundamental point and concede that it is ok to set rules on things like private property.