Couldn't UHC be means-tested, so that the people who can't afford Health Care, do get it, whereas those who can, pay - perhaps on a sliding scale of some kind, geared to income for instance. - Sure then it wouldn't be "Universal", but why should that be necessary anyway, other than for ideology's sake? The only concern should be to deliver HC to those who otherwise couldn't afford it.

Preventitive measures are also important as you say: educating for health, and so on. - Also, I would favor legislating for rights/responsibiilties - on both sides of the fence, both the providers and the public. That could put brakes on people abusing the system, whether greedy doctors, or arrogant overly selfish patients. Point here: a balance can be reached, even beyond relying upon the magical marvellous mystery of market forces. But, to repeat: UHC as a blanket solution seems to be unfeasible and ideologically-based.