We don't have $2.6 trillion to give back. And the Ponzi scheme called SS is unsustainable. In 1950, there were 16 workers to every retiree; today there are 3.3; and by 2030 there will be two.
Why do you want to allow the Congress to back out of its debt? I can't back out of mine. To say, "Ah! It's ok. I don't mind being screwed. I even enjoy it is a backward way of thinking.
Regarding you number of workers supporting the system, that is solvable. Reduce taxes. Cut the spending and quit scarfing the present surpluses. That will cause employment to increase. Ergo! More working to pay into the system.
Simple!