I’m actually in agreement with you up to a point, but these policies won’t stop Elon or bezos becoming billionaires. They’ve built businesses that actually put a lot of value into society. They own shares in those businesses, that’s why they’re wealthy. Unless you tax their capital gains, yearly, you can’t stop them.

And that opens a massive can of worms. How does a paper billionaire pay taxes on paper wealth? Do you force them to take out loans? What if there’s a stock market crash. And they lose net worth? Do you refund their taxes?

It’s a really bad policy.