We have only this year moved to a more progressive tax regime after a long period without it.
We have only recently upped corporate taxes.
As the middle class gets wealthier tax receipts will rise without raising taxes for a good while. Longer term in roughly 15 years something like the VAT will come into play.
We have only 10% of white males over 50 as of 2019 able to afford retirement. It must be a lot worse for the other demographic segments.
Today’s society coming up has other plans for their retirements, healthcare and how their children’s education is paid for by the public. This makes for a much wealthier America and the succeeding generations are quite aware that listening to those who were pro supply side econ is a recipe for impoverishing most Americans. Never mind our current $31 tr in debt the results of sheer greed and stupidity.