Most of the drawbacks you've heard about Canadian healthcare have been promulgated by the many many entities whose pockets are lined by this idiotic system continuing to grind forward.
A recent tech company I worked for in the Bay Area charged about $50 pre-tax twice a month and I paid nothing out of pocket. The gulf between good healthcare coverage and bad coverage is what’s obscene in the US.
I haven’t seen an argument for how the good coverage is worse, which is why I always ask.
The existence of premium healthcare plans for the high earners or the wealthy is not a reflection of the healthcare system. It’s how much access most people have that matters, statistically.
If it was just the rich that did well, it would be trivial to get consensus to vote for change.