Not really. A Ponzi scheme is voluntary, hoping for a 50% return on an investment in three to five months whereas SS is mandatory and you don’t realize the benefits until you can claim them at retirement.
It’s exactly a ponzi scheme.
Current income is used to pay past investors. The investor pool has to continually expand, or the scheme collapses. That is exactly how SS works.
And here’s no such thing as a SS “trust fund”, It’s a pile of IOU’s the government owes itself.