I agree this (single payer) is the likely result in the long run.
I have to say I am absolutely disgusted with the right wing. They have taken an idea from the Heritage Institute to use capitalism which may have worked (it may have failed as well but at least we would have tried) and made it now politically impossible. If they get in office and repeal Obamacare the result will be so obviously awful that there will be a fix very soon afterwards. And the left will use all the arguments that the Tea Party came up with to say that private companies cannot be used (because the mandate is unconstitutional, etc) and it will be a government service just like all European countries use.
Yes healthcare is cheaper in Europe, but that does not mean it is the best system. A regulated competitive market should do better because competition leads to innovation and reduced cost. But we will probably never see it tried, thanks to the fanatics in the right wing. Thanks a lot, assholes.