Rights vs. Privileges. Health care isn't a right, but perhaps should be a privilege of advanced society.
My problem: Can it deliver equal quality/cost that I currently receive? It's doubtful.
Can the system scale to 325 million? How does it deal with illegal residents?
It's an interesting topic.
I just think the solution is far more complicated than proponents admit.
If Medicare is the best option, then it will put private insurance out of business. The idea should be put to the test; see what happens when people can choose.