It’s also operationally almost impossible to implement, as what counts as ‘wealth’ is highly ambiguous, and in most cases valuing it even in the best situation is nearly impossible. In a taxation situation even more so because it isn’t changing control between disinterested parties, so there is no one who has the time to really look at and form their own opinion and holding anyone accountable to it on a short timeframe.
A lot of the trump real estate scandals are from him (supposedly) manipulating real estate appraisals for favorable loan and tax purposes, and that is for something with relatively easy/straightforward/understood valuation and an army of appraisers.
Private equity? Partnerships in ongoing concerns? Controlling vs non-controlling interests in various things? Trusts?
There are so many valid ways to look at, account for, and structure these - and they all have wildly different values, levers to change those values, and short or long term valuations and cash flows. If you own a controlling interest in a large business, but don’t sell anything and don’t have income from it (you reinvest it in the business), that may or may not be a lot of wealth. If the business tanks without it, was the business worth anything? Or was it worth something and then it was another factor that killed it? If the business is producing a lot of cash and the owner pulls it out, that is clear measurable income and easy to quantity.
To the point if you threw 5 independent evaluators at any of them you’re probably going to get 7 different actual numbers, all meaningfully different, and all of which could be argued are legitimate.
If the wealth tax goes after real estate, folks just won’t put their name on it directly and voila, good luck.
This is also despite those alleged shenanigans being hamhanded and pretty obviously done and by probably the most well know and controversial ‘wealthy person’ in current society, enforcement still not only didn’t work, it still hasn’t actually been enforced. And is surrounded by massive controversy and legal BS and will probably drag on for another decade.
It’s like pointing to OJ Simpson’s murder trial as an example of swift and non-controversial justice that supports your legal policy?
Therefore, a wealth tax would either raise money or discourage a form a fraud. It's a win either way.
The net effect was the same. Putting an effective cap on income throttles wealth inequality growth.
>A wealth tax would be hard / impossible to implement
It absolutely would be. Any political effort to do so would be sabotaged every step of the way by institutions dedicated to protecting enormous agglomerations of private wealth.
Moreover, closer it got to the finish line the more willing American oligarchs would be to flirt with political violence and ally with and organize the underlying, disorganized currents of fascism in order to keep their wealth.
This is a path we've been along before, almost 100 years ago.
However, the US middle class was more willing to organize and fight to protect its interests back then. There were actual communists among them and the US government was legitimately afraid enough to kowtow to their demands every so often. Not any more.