hatari,
your proposal seems to address the "elephant in the room"............
the working poor, (white, black, "Hispanic", Asian, etc) those who can't afford the rising health care costs we've been seeing for the past decade or two.
These are the folks who want to keep "Obamacare". They can get somewhat affordable insurance. Maybe not high end, but at least they have something. Prior that, they just didn't go to the doctor unless they were dying.
I have a brother in that situation, worked hard all his life, lives in a high cost of living area, getting older......he story of many a good citizen. Universal health care would help him for sure.
For those that can afford it, supplemental system if they don't like the universal.
As you suggest, politically, a smart move. A party would pick up many of those voters on the fence.....vote for some sort of health care they can afford.......or vote for their "conservative" values. Probably pick up a bunch of those pro-labor outdoorsman (union member type) who are losing the battles for employer paid insurance policies they had in the past.
Geno
