Low- and middle-income families pay most of their taxes in the form of payroll taxes, which are a mandatory 15% tax (shared by the employer, who also pays their salary) on all income. Consumption taxes also apply to everyone, and for those who spend most of their income each year, this amounts to at a 5-10% additional tax.

Virtually nobody, with the exception of the very poor who qualify for the EITC, are safe from these tax. The "50% pay no tax" is a right-wing talking point that is intentionally dishonest.