Social security is in jeopardy regardless. When it was enacted families generally multiplied. Now some families don't even have 3 kids let alone any multiplicity. If 2 elderly adults only have 2 kids and 4 grandkids on average the amount of money to support the eldest generations will be too burdensome.
So far, the arguments have been limited to the system paying for itself. Similar systems used by other countries are often funded from all tax sources.
As for Obamacare being a done deal, it's far from it:
1. If the GOP controls the Presidency, Senate, and House, it's gone.
2. If the GOP controls the Presidency and House, it won't be implemented.
3. If the GOP controls nothing, a number of state governors have already declared they will not implement it on the basis that regardless of what SCOTUS says, it remains un-Constitutional. Their justification is their oath of office, to the U.S. Constitution, and not to any chain of command, including the President, Congress, or SCOTUS. As a retired military officer, I'm inclined to agree with them. Their actions are not revolutionary, but lawful and Constitutional. In fact, anyone who has taken such an oath has a duty to fulfill it, regardless of what one's chain of command is doing, but especially if what's coming down from on high is itself unlawful.
4. If that's a wash, then countless people are dead set on ignoring it, as well.
When you put 3 and 4 together -- of, by, and for the people -- all that leaves are some bewildered politicians in Washington wondering why their efforts are disappearing into a thin vacuum.
WE THE PEOPLE really are the supreme governmental authority in our country. Our government cannot function without the consent of the governed.