Comment by credit_guy

That's not all that matters. The main reason to have taxes is to fund the government, not to make society a more just society. And thinking that billionaires will just take a wealth tax as served, and perhaps will ask "can I have some more" is one way to think about this, but probably not the best way. A better way to think is that action might be followed by reaction. There is no manifest destiny for California to be the epicenter of tech.