As I commented elsewhere, everyone gets affected by a wealth tax, as it will affect how assets are priced and how businesses operate across the board.

For those who have little hope of the wealth tax applied to them (me for example), but as as someone who has investments and need them for retirement, I need to decide if this will affect bond prices or equity prices in a positive or negative way as their attractiveness will change in relative terms, or if publicly accessible funds will get devalued in favor of private investment opportunities and all public assets get devalued. Oh, wait, I am not wealthy, so I do not have the option of private equity, and cannot participate in what would be an attractive investment opportunity when investments shift towards more opaque assets.

For those that have zero assets, I do not think that a shift by the wealthy to private equity is a good thing, unless you want to work for a private equity company. A government job would be your best bet. And a shift to private equity would have a downward pressure on tax collections, so whatever projections for how much a wealth tax would generate, I am suspect.

A lot of people complain about private equity. This scourge was, to a small or large degree depending on your viewpoint, an unintended side effect of SOX compliance, meant to protect investors, and in the end narrowed down the amount of public companies, and created more opportunities/demand for PE. I think it is debatable how much protection investors actually received.

We live in a system, and making a fundamental change to one part of that system has effects on all parts. Raising the amount of taxes under the current system ? That is one thing. Introducing a whole new tax concept, difficult to predict. Especially if this is done by states, which could cause capital movements with their own unexpected consequences.