When I was first forced into paying my earnings into the SS system it was with certain understandings as to when I would get it back. To change the age is akin to breaking a contract with no recourse.
It is not my fault that the Congress stole my money for the current budgetary spending and never put it into the SS TRUST FUND so that its earnings would grow it enough to pay for my retirement.
I can hear all of the public service employees saying just what you said about their underfunded pensions that we will be unable to pay. Not criticizing you in any way.