So you’re saying it wasn’t theft when they stole from you?
The fact of it was a theft enabled by gov't power. However we could be made whole commensurate with those "contributions" we were forced to make at gunpoint. Now the SS defenders constantly assert our money was "invested" in special gov't bonds (every once an a while they'll pull them out of a drawer in Ohio somewhere) and it's solvent, don't worry.
Touting the FEDGOV as the beneficiary of this crime means it's the FEDGOV's assets we have claim to. Of course this is verging on low-probability nonsense - for one thing we probably need gov't permission to sue it over this - for another thing the FEDGOV isn't allowed to be bankrupt (full faith and credit, remember?).