Is there a specific reason you are against non-M4A type systems? As far as I'm aware Germany and France for example have universal health care but not single-p

Is there a specific reason you are against non-M4A type systems? As far as I'm aware Germany and France for example have universal health care but not single-payer. The issue in the US seems to be some people with good jobs have health insurance they're satisfied with, and so don't want radical changes. So it's harder to form a political coalition to change health insurance for everybody, than it is to just fix the situation for people who don't have anything.