Just a reminder, 92% of Americans have health insurance. California has universal healthcare, and there are more people in California than in Canada.
[1] https://www.citizen.org/article/medicare-for-all-prevents-me...
[0]: https://www.cbc.ca/news/politics/canadians-moving-to-the-us-...
126,340 Canadians moved to the US out of a population of 38.93 million
0.32% hardly seems like "most people"