Let’s tax those who make more than a million a year at 90%.
Then redistribute the money so gained by taxing the rest of us less, so we have more spending money.
Still bad for the economy?
Yes, because that’s assuming demand side economics works (ie Keynesianism). It doesn’t Economies grow via productivity gains. That means investment and risk taking to spur innovation. That investment and risk taking are what produces the large incomes. If you remove the incentive for the risk taking, you strangle growth.
You are advocating income re-distribution. You sure you are on the correct web site?