Well whatever you want to call it SS was secure till they put in the general fund.
It was never "secure" since it was a Ponzi scheme funded by fiat currency in the first place and thus was not sustainable (
that which cannot go on forever must end), using the mythical lock box method all you'd have now is a "lock box" full of highly devalued fiat currency at least under the current system the SS "trust fund" is getting a small sliver of interest on the original contributions.
Those assholes have been robbing it blind ever since.
True but that has nothing to do with moving worthless pieces of paper from one ledger entry to another, it's in the printing of said pieces of paper and the distribution effects of injecting them into the money supply where the bulk of the "robbing" takes place.
See: the history of the Roman Denarius for a good historical example of the long term effects of massive currency devaluation.