I think it also generalises to most of the developed world. Aren't the basic income taxes in the USA also deducted by the employer before you get your pay?
And you also have welfare, unemployment benefits, etc., that come from this money (details of what goes to states, or countries, or other levels of government will vary by country). The USA also pays towards its health system from these taxes - I gather the USA pays more for health with public money than almost any other country, in addition to the massive costs of private insurance.