I have a suggesttion. lets have two options. you can continue to pay into SS and take advantage of the current system, or you can opt out and utilize a private method and not be eligible for SS benefits. Conservatives will retire comfortably and liberals will retire at 75.
There are four problems with that suggestion:
1. Social Security has an insurance element. A part of your tax goes to fund disability and survivor benefits. For a worker at peak earning years, this is the equivalent of a disability policy and a life insurance policy of about $450,000 each. Private insurance could be used in conjunction with an alternative retirement system, but I have never seen proponents of such a system factor in the insurance costs BEFORE making their claims of how much better of an investment the alternative is.
2. Social Security has a subsidy element. The two inflection points in the benefit formula result in low income workers having higher relative benefits than higher income workers. Alternative systems usually ignore this and do not factor in an equivalent subsidy.
3. Social Security does not create property rights, private plans do. When a person dies, all benefits other than survivors and the $255 burial allowance terminate, and no matter how much a worker has paid in, his family has no property rights outside of those benefits. In the private alternatives, heirs get the remaining balance in any accounts.
4. Investment risk and expense is transferred to the participant. Under Social Security, the participant does not bear these expenses and risks. While intellectually we might be OK with letting grandma starve if she invests unwisely, I doubt that when the time comes we will let that happen.
I have not seen a proposal that addresses these problems meaningfully, and the partial analyses I have seen were not very palatable to the employees. This is why union busting is so important to employers. They can save money if they can reduce their Social Security contributions and shift the expenses and risks onto the employees. This is a lot easier in unorganized labor markets.