No worry about nits here! Very good point, I was remiss and meant income and not wealth in the highlighted sentence.
Wealth taxes are more problematic than income tax too. And often times they state a net worth which is often just stock value that can change quickly. Musk hit a trillion, but most of that is stock value and not something that is taxable barring a transaction.
I think my major point would be that if you look at our fellow humans that are working and struggling out there, even relatively small amounts of cash can substantially help them out and move them to a point of affordability.
That bolded sentence is a huge understatement, and yet another reason I don't trust the press to present a full examination of anything.
If a person's wealth is tied up in cash and publicly traded investments, it's pretty easily and objectively calculated. But then your point about the volatility inherent in the stock market -- it goes up and down. To be sure, a sawtooth up, but the downs can be precipitous.
Suppose, for example, a person has $5 million in publicly traded investments and has to pay tax on that. Next year, the market is down, and they have only $4 million. Is that $1 million unrealized loss deductible?
Maybe not if the tax is only on the portfolio value. But a lot of "wealth tax" plans would also tax unrealized gains. So if I had $4 million in my account last year, and it's worth $5 million now, I have to pay tax on the $1 million gain even if I didn't sell anything and therefore didn't get any of what we would currently call income from it.
Next year the market goes down, and my nest egg is worth only $3 million (which is $2 million less than last year's ending number of $5 million). I had to pay tax on a $1 million unrealized gain. Do I get to deduct the ensuing $2 million unrealized loss?
What if my net worth is tied up in a privately-held business. How is that valued for purposes of a wealth tax? What if it's options, which are notoriously in the money today, out of the money tomorrow?
What about real estate? Does it have to be valued each year? Anyone who's ever tried to value vacant land knows that the main question is highest and best use. Who determines what that is?
The list goes on forever.
Income is not perfectly objective, but we've been taxing it for over 100 years now, and the population has generally accepted the concept. We still have arguments over the specifics. But except for tax nuts (Posse Comitatus -- sp?), it's been largely accepted as a part of life.
The idea of a wealth tax, however, is an envy-born attempt to eat the rich -- rich being defined as anybody with a bigger pile than I do.