Dude, there's areas down there where they have open sewer canals filled with shit between houses and there's like one whole doctor in a county. Yeah, a rich white person in Mississippi is probably better off than a poor Canadian. Most Mississippians aren't rich.

Our healthcare is shit and costs people who make under a hundred a year more in tax than insurance would

Canada spends less per-capita on healthcare than America by a good margin. I'm not sure where you got this, all that comes up are political think-tanks, but that suggests the per-capita payment would be lower even before the private insurers take a cut.

that are nothing but (very effective) propaganda.

For who? Nobody makes big money off of public hospitals. Doctors and nurses make just enough to keep them there, administrators at least where I live are few and far between, and all are under-resourced and overworked.