Look, until we can get the Federal Govt out of things it shouldn’t be involved in, there will be taxes to pay for those things and all the waste and inefficiency they cause.
Of course the 16% has to cover the payroll tax revenue in the short term, but it is still a much better system than the current one that is a disincentive for work and investment.
Do you own a small business? If so you cannot be serious. If not you don’t understand how a normal small Chapt S pays taxes.