You are commenting in a thread that started with a statement that the very existence of billionaires is a problem, and a followup claimed that billionaires exist because they don't pay taxes.
My point is that the mechanism that creates billionaires in western societies is beneficial since the same mechanism generates a higher standard of living for everyone, not just the billionaires. It also generates way more taxes than the billionaires can pay even if you forced them.
I don't see how you can remove the billionaires without killing the mechanism. It has been tried, and has never worked out.
To be clear, Im not talking about people becoming billionaires in dictatorships or by owning the natural resources of entire nations. That's a different matter entirely.
I completely agree that one of the actual problems is that corporations are incentivized to treat workers as poorly as possible btw, and that is a problem that is actually fixable.
Whether billionaires pay a "fair share" or not depends on what you consider fair. I don't think basing tax on a market valuation of something you own is fair and I am not aware of it being done in any western nation. You get taxed when you sell shares, not by simply owning them.
The only example I can think of where it kind of happened is Jack Ma in China.