I am not a liberal, and I agree that far left has made medicare reform difficult. BUT, the Republican stance has always been to go private and that isn't the answer either.
There are always two sides of the argument, and when the country can look at it from a moderate point of view both parties will be better.
I fully understand your point about medicare and social security, but those are CURRENT problems and not an Obama created issue. Maybe you don't agree with his proposed solution, and I am not crazy about it either, but it took a bipartisan government to get us to this point.