That has to be the most incorrect and idiotic statement ever to appear on FR. Nobody "willingly" pays FICA, they pay at gunpoint. I did try to get out, and was told "NO". It is a US government enforced ponzi scheme. I don't know your situation, but try not paying FICA/medicare taxes, if you have a taxable income.
The previous poster did not say anyone willing paid. The point was that those who pretend they “paid into” a “system” and deserve eventual benefits by right willingly put their heads in the sand. Which they’d have to, because it is so obviously a sham.