The main proponents of "universal coverage" want to throw more money at the current health care system, which strikes me as unwise. I believe that the "universal coverage" mantra is dysfunctional for the same reason that "more money for public schools" is a dysfunctional mantra for education. When your current approach is digging you into a hole, the sensible thing to do is not to dig faster. It is to stop digging.
"Universal coverage" is a popular solution in health care. Too bad it does not address the important problems. Even economists on the liberal side of the spectrum recognize that broader reforms are needed.
My thought is that calls for universal coverage are worse than a distraction. They are a seduction that if mommy or daddy government takes care of it we can rest easy. Looking around the globe, I don't find this to be an attractive idea.