The Short Version
Under standard tax measures, the U.S. middle class pays substantially lower effective tax rates than the wealthy. IRS data, the Peterson Foundation, and Treasury figures all show the middle quintile paying roughly 14% in comprehensive federal taxes versus 25–33% for top earners. The claim holds only for the ultra-wealthy top 0.0002% under non-standard income definitions that include unrealized gains — a narrow edge case that does not support the sweeping generalization presented.