Do you think the government can finance "free" Medicare/Medicaid for all, "free" college for all, etc., simply by taxing those with $10 million incomes at 70% or 90%, as Alexandria Ocasio-Cortez suggests?

Anyone who can do simple arithmetic can figure out that there aren't enough millionaires and billionaires to finance these schemes.  They would require considerably higher tax rates from everyone who pays taxes.  Besides, the super wealthy never actually paid rates like 70 or 90%, even during the 1950s, as the attached article shows.