Taxing unrealized capital gains? So someone like Bezos who's annual increase in wealth is in the form of amazon stock, would have to sell that stock to actually have the liquid cash to pay for this tax? Come tax season wouldn't it lead to a bunch of founders having to flood the stock market with their stock, hence a large decrease in the stock price and consequently lower taxable amount? Hence a self defeating tax?

Then there's the inflation question. If CPI is 3%, and my capital gains amounts to 6% of my portfolio, my real increase in wealth is only 3%. But I pay tax on 6%?