I wish more companies would choose to do this honestly.
https://www.palladiummag.com/2026/09/22/wealth-taxes-could-k...
Moreover, you could create a multi-tier share structure where controlling ownership belongs to the founder whereas financial interest in the business belongs to the holders of other equity flavors, which is fairly common (e.g. Meta, Snap are structured this way).
Then the founder can [choose to] sell those cash-flow-stocks while holding on to the ownership stock.
It's utterly hyperbolic to suggest that a wealth tax would kill privately-controlled corporations.
You might be better off taking out a loan against the value of the business to pay the tax, if it's a one-time tax. The problem is when they come for the second wealth tax, and then the bi-annual wealth tax, and then the annual wealth tax. There is no likely scenario where it's a one-time tax.
For a company that's worth >$100mm in revenue there should be no shortage of investors willing to buy your non-voting shares.
"causing chaos, trying to get people tossed out" literally cannot affect you if they have non-voting shares.
You're also ignoring the ability of owners to issue dividends or buying back shares to cover taxes.