Democrats did a great job in crafting ObamaCare.  It was designed to fail financially but would accomplish two major goals.  The first was to convince people that health "insurance" is a RIGHT.  Notice that I didn't say that health care because they are two separate issues.  Second was the expansion of Medicaid to almost 20 million people.  They achieved those goals.
The hidden agenda was to have a nationalized health care bill waiting when ObamaCare collapsed and Hillary was elected.  OHMIGAWD!  Hillary wasn't elected!
Single payer insurance IS NOT economically feasible!  Both tiny Vermont and gigantic California have tried to fund state plans only to find out that the costs are astronomical.
I now believe that ObamaCare should be left in place until it fails.   We need some out-of-the-box creative thinking and cost reduction or we'll NEVER solve the problem.