We have had lots of both and neither works perfectly or without waste. So I don't see any 50% savings just from making more provider facilities public ones. Cheaper, undoubtedly. But I believe people in this country value private, independent service providers more than elsewhere. They would be screaming communism in a heartbeat with little prompting from the billionaires. I've gone to one of these local drive-in HC places several times now and been treated as well or better than at my family doctor's office. They ain't half bad.
What there can't be is private HC insurance for routine HC or emergencies. Cosmetic care? No problem.