Don't think you know what that means.

I do. I was being imprecise, but the gist is that all taxes are inherent inefficiencies.

Taxes on wealth doesn't produce deadweight loss unless you can demonstrate it impairs capital expenditure or domestic consumption. It doesn't. Rich people are lazy managers of pools of capital and you don't need them for economic output when you have constructs we developed centuries ago called corporations.

You’re completely ignoring investment. Rich people invest their money. They don’t just let it sit in a pile.

The whole meme of associating anti-oligarchy with Marxism is quaint, but quite wrong. This isn't about the state owning the means of production. It's just reducing the concentration of wealth.

Just because it’s not the whole Marxist package doesn’t mean the association is inaccurate. Marx explicitly saw wealth accumulated through investment returns as ill-gotten gains and proposed forcible government redistribution of it.