> Each 1% of wealth tax is equivalent to 20% of income tax.
Yes, this is the right part. Taxing wealth at 1% is equivalent to taxing income at 20-25% (depending on which return you count as baseline)
> It's clear that politicians don't get this from the way they talk about a "mere 1%" wealth tax. None of them would speak of adding a "mere 20%" to the income tax rate
On the opposite, they understand it right, and PG is completely wrong here: it's not about adding income tax rate to someone that already pay income taxes, it's about making wealthy people, who don't currently pay this tax rate, pay the same rate as people living from their income.
> So in the median case, a state adding an additional 20% in income tax would have a total marginal tax rate of 37% + 4.75% + 20%, or 61.75%.
Bezos, Musk, Zuck and the likes (or even PG himself, likely) don't pay 40% tax on their wealth growth, they currently pays 0%.
In fact, to make them pay as much tax as their employees, there should be a 2% wealth tax, not 1%. Hence, a “mere 1%” is in fact a very generous proposal by leftists politicians and economists, as it would still mean the wealthy only get half the rate of working people.