No reason the US can't take the Canadian model and perfect it. We have more people, more doctors and less desolate areas than does Canada.
I'm not so sure that more people [greater population] makes a social healthcare bureaucracy better.
Do you mean that more people = more purchasing power, which ultimately means that greater economies of scale will be produced, this saving money?
That may be true. As a person who greatly respects state's rights and fear growing federal government power through consolidation, I am somewhat concerned about large federal bureaucracies. My other concern is that people like AOC will then start demanding every illegal immigrant get free healthcare, including violent offenders. For example, in Canada, we have thousands - perhaps over a million, or even millions - of people who have moved here to basically leach off our generous welfare system. And the USA has 10x the population, which will likely result in 10x the people coming into the USA to do the same thing.
Honestly, it wouldn't bother me, if not for the ASSHOLES complaining about Americans, calling them racists and imperialists, etc.
Ever since age 13, I have HATED Canadians whining about Americans - classmates who would bitch about Americans, while watching The Simpsons, and other American TV and movies every week! We were being brainwashed in school to not hate people based on group membership, yet also being brainwashed to hate Americans.
That contradiction is what ultimately initially made me "racist".
Regarding your last two points:
Having more doctors and fewer desolate areas will help you.
But one warning on that - in Ontario in 2015, the Liberal government had to apply some pretty big budget cutbacks to healthcare, as they had the Teacher's Union placing big demands on them [Ontario teachers get paid either the highest or 2nd/3rd highest in North America].
End result = Thunder Bay lost either two or three family physicians to other provinces, and our only dermatologist at the time. I think we had one more [Dr. Mahler], but he was close to retirement age. These details may be somewhat off, but this is basically what happened.
From reading your post, I can see that American healthcare isn't perfect. I just hesitate to fix any system that is working.
Also, let's be honest - despite all the people bitching about the USA "oppressing" people, look at how many people risk their lives to live there. IMO, if you start giving out more free stuff, next thing you know, Biden will start importing more poor people to become American citizens.
If there was some way to guarantee that this abuse wouldn't happen - I'd say go for it. But in Canada, the hospital is so filled up with people in the ER with headaches, that I opt not to go when I probably should. Just like how COVID has prevented people from going to the ER when needed.
Final point - no system is perfect. You make some good points about why Canada's healthcare model is good in some ways, and how the USA's could be improved. I'm just hesitant to suggest any changes, as I find all socialist programs get abused.
If your healthcare plan is as you claim, I do see that as being a bit costly.
Maybe the moral here is we both need to keep training hard, to stay out of hospitals, lol.