Obama didn't kill it.
Failure of one or the other side in the original Medicare debate (1955-1964) to prevail and impose a free-market system or a nationalized system killed it.
The compromise structure of the post-1965 hospital finance system was never sustainable. Reagan's band-aids (DRGs and EMTALA) let the hybrid system survive for a while, but it was never built for the long run.
"Obamacare" became inevitable, if only to keep the doors open for another 10-15 years, but it's just about done now.
HMO's were causing problem but the basic structure was sound.
You just have to look at how many independent doctors there were ten years before and ten years after Obama(don't)Care clawed it's way into the health system shredding everything it could get it's nails on to see that what I say is true.