> Is it so simple? The highest marginal tax rate in the US is 50.3% (37% federal + 13.3% state in California). The highest marginal tax rate in Norway is 47.4%.

Sure. It’s not simple. But you’re missing a lot of the picture too. People with high wealth and ownership can leverage massive loopholes (like taking a loan with stock as collateral) which means they pay very little effective tax on their “income”: https://www.profgalloway.com/earners-vs-owners-2/

The solution is surely not the status quo.