Earlier quoted context omitted.
We do tax capital gains. You pay taxes when you sell. Do you mean tax unrealized capital gains? There is a reason you don’t owe taxes on a stock you haven’t sold yet. For one thing, what if you have to pay tax at one valuation, and then it goes down later.
I agree that taxing unrealized capital gains is a fundamentally flawed approach. However, the problem with the current system is that these ultra-wealthy people just end up borrowing against their equity, avoiding selling if possible. I think it would make sense to count borrowing against equity as tax-wise equivalent to selling that same equity. With that loophole closed, together with raising the capital gains tax,…
When you get a mortgage to buy a $750k house, do you want to be taxed as though you had $750k income that year? You’re just borrowing against the value of an asset after all.