Noahopinion has a very recent interesting article on wealth and taxation. It makes me mad because it contradicts a lot of cherished ideas I have about the rich and taxation, but probably makes sense in this conversation: https://www.noahpinion.blog/p/theres-not-that-much-wealth-in...
As this article explains: the US could confiscate all US billionaires' wealth and that would only pay for one year of public US spendings. Not to mention that confiscating that much wealth would crash the very value of that wealth, so they'd get less than that.
That's what I meant in my comment when I wrote that we know how it's going to end up: they won't stop at confiscating the billionaires' wealth. The state shall immediately run out of that. They'll then come after the middle class' savings (which the EU is preparing at the moment, should be coming out in a few months).