Silly, the overhead administering it is very, very low. Much lower than the private retirement funds.
Private retirement funds invest the money, and pay back from profits. SS does no such productive thing. Government collects 13% and then pays out minus its cut.
Are you really arguing against a system that helped old people live a little more decently? There is no denying that SS provided (and probably still does) a great social service.
SS is a Ponzi scheme that robs the next generation to feed a previous one. The "Rate of Return" of SS has been decreasing with each generation - because the ratio of suckers to payees has been decreasing.
Even if SS became "sustainable", the benefits are wanting. Within families that care for their elders, all SS does is add overhead and extra costs. So SS penalizes families that prepare for retirement and care for their old, to benefit those who ignore retirement and neglect their old.
Why would you want to discourage people planning for retirement and caring for their elders?
If you're lucky, you will get old too and it's very likely you'll see it differently from now.
If I'm lucky, I'll see SS abolished in my lifetime so future generations do not live under its burden. Even if right before my retirement such that I never get a single penny.
Some generation is going to have to bite the bullet, and I'll choose mine if the previous ones are too selfish to do so. I don't hate the future enough to enrich myself at their expense, and I despise your belief that I am so easily bribed.