Earlier quoted context omitted.
Sweden, France, California, Washington state and NYC have discovered once again that taxing the heck out of rich people causes them to leave. And when they leave, they take their spend/invest/hire money with them.
The US had a tax rate of over 90% for the wealthy in the 1950s (although with loopholes they could push it lower, like now). Didn't seem to have much of an effect on the wealthy, and the US working class did very well.
The only thing that matters is what the effective rate was. They could create a 100% tax bracket but if nobody paid it, it's just words in a book.