I was significantly more specific than that. Please see my last post.
I was referring to your last post. It's the one where you Romneyed.
Income tax withholding is a payroll tax. Now on to those finer points.
Perfectly true. Income tax withholding is a PAYG payroll tax. FICA is plain old payroll tax.
There are many types of income taxes: Corporate, Individual, Payroll, Inheritance, etc.
See how in the first two quotes you are saying that income tax is a type of payroll tax but in the third one you're saying that payroll tax is a type of income tax?