Related: https://crimethinc.com/2019/04/08/against-the-logic-of-the-guillotine-why-the-paris-commune-burned-the-guillotine-and-we-should-too

When people say: "billionaires shouldn't exist" that isn't a call to violence. "Being a billionaire" isn't some inherent property in the way that say, skin color is.

Wealth taxation is a perfectly acceptable way of eliminating all billionaires. That doesn't mean billionaires stop being people, they just stop being billionaires.