Class warfare can be capped by say Constitutionally requiring all income tax above 30% be used to pay down the existing debt (and that refinanced).
What I suggest is three tax levels, 12% [FICA+Medicare+~4%] on all income be used for Social Security, Medicare and (~4% for)food/housing/disability aid. This 12% to be paid by all.
A top-up tax above $25,000/year to finance government as is envisioned in the Constitution [defense, roads, maritime rescue, federal courts/prisons, FBI, etc].
An existing debt pay-off tax on income above $100,000/year.
Flat taxation is not currently possible because zoning and illegal immigration has made housing too expensive and government regulation and patents (that don’t require medical product individual affordability) have made health care too expensive.
The poor simply can’t pay the same tax rates as the middle class and high-income doctors, dentists, lawyers, executives, investors, large licensed contractors and athletes.
Health care is to high because it is exempt from pretty much every anti monopoly market regulation known. The American citizenry is forced to subsidize drug and device R&D for the rest of the planet. Get the guild socialism, lack of price transparency and differential pricing and reimportation bans out of medicine and the costs would drop to where 95% of issues could be paid out of pocket.