[mauricio]

Using the tax brackets to measure how much we pay in taxes is incorrect. There are things like Earned Income Credit and other credits that generally relieve the tax burden completely from lower income earners.

Check out https://taxfoundation.org/summary-federal-income-tax-data-20... for an analysis on 2015 US taxes. The bottom 50% of the US paid an average of 3.59% of their income. MarketWatch claims that 44.4% of Americans pay no federal income tax at all: https://www.marketwatch.com/story/81-million-americans-wont-...