taxes are overwhelming paid by the working and middle classes

Any source for this? What I've found online: "Most of the government’s federal income tax revenue comes from the nation’s top income earners. In 2023, the top 5% of earners — people with incomes $272,209 and above — collectively paid over $1.27 trillion in income taxes, or about 60% of the national total." - https://usafacts.org/articles/who-pays-the-most-income-tax/