Again, the difference, if they use the money you gave them for other purposes you can sue, you can't sue the government for SS money.
I agree there are difference between SS and private insurance.
But SS is not like an investment. You don't pay in and get some ROR over time. Its not put in an account with your name on it. You don't necessarily get back what you paid in. It's not your money any more. So it is nothing like an investment. But, like insurance, you do get benefits if certain conditions occur. If you die your survivors get a benefit; if your disabled you get a benefit, and if you live past a certain age you get a benefit.
And, IMO, we all get a benefit because we don't have millions of old folks living in the street, which is where most of them would be but for SS.
if all those old people were allowed to keep their 7.5% of income and the 7.5% of income contributed by their employers, there would be no need for Social security. And their money would really be their money just as your money would really be your money.
if we were allowed to keep that 15% of our incomes over a lifetime, we would all be able to afford a better disability insurance plan and have more to live on in retirement.
Would a private system that 1) provided a guaranteed, inflation adjusted death benefit for your survivors if you died, 2) provided a guaranteed, inflation adjusted disability benefit, and 3) provide an inflation adjusted guaranteed lifetime pension for you (and spouse if you die), that was guaranteed against failure of the company, and provide these benefits in sufficient amount even for low income wage earners in the country, *and* cost less than SS? Mabye. I'd have to see the numbers.