The article decides to include employer-side payroll taxes in its US calculations as though this is an income tax - but this is not (appears not to be) done for

The article decides to include employer-side payroll taxes in its US calculations as though this is an income tax - but this is not (appears not to be) done for other countries, where payroll taxes are often higher, so it's not a fair comparison. The inevitable Wikipedia link: https://en.wikipedia.org/wiki/Payroll_tax#/media/File:Payroll_and_income_tax_by_country.png https://en.wikipedia.org/wiki/Payroll_tax#/media/File:Payrol...