The Democrats want socialized medicine, in one form or another. The best they could do was O'Care, which went a couple of steps in. If they ever were to say "socialized medicine" out loud and put it up for a vote, it would be roundly defeated, which is why only cranks like Bernie Sanders say it.
But the basic truth is that Congress has no power to spend our tax dollars on healthcare (or housing, or food, or...you get the idea). Their "powers" are laid out in Article I, Section 8, and there is not even a hint that they can fund healthcare or partially fund healthcare, as is the current mode.
I challenge anyone reading this to find where Congress gets this power...and anyone using the words "general welfare," go to the back of the class and put on the dunce cap.
Healthcare is up to the States and the private sector. See the Tenth Amendment.