I understand you're the relative expert here, but even so I must disagree with your general thrust.
I've been hospitalized in four different countries. The least sane was America. The sanest was a private hospital in England, but the public hospital in England was fine too. My home country of Canada is sane, reliable, and reliably slow and mediocre bordering on subpar. Cyprus lacked toilet seats, but at least the food was fantastic.
America's healthcare system is bananas. Even trying to come up with a metaphor here is difficult. It's $5k a day stays with Wonderbread, tuna, and bad not-actually-mayo-mayo for lunch. It's well groomed, well respected, monied indentured second and third opinion servants. It's Moloch's own mediation on Moloch[0] sold on the discount rack of the bookstore pharmacy downstairs.
You can think Americans are different. They are not. They move to Canada all the time and we service their bum knees just fine.
You can think Americans do all the medical research in the world. They don't. Plenty comes out of Europe, China, and elsewhere.
You can think your tax code is unique. Ok this one I kinda agree with. It's almost as bananas as your medical system. But it doesn't change the fact that Americans put up with absolute bananaspants insanity for a healthcare system when they're perfectly capable of funding their libraries and roads.
China beats you on scale. And so on.
The basic fact is that Americans have what is essentially a psychopathic medical system at the best of times. One can negotiate with a psychopath, but Kafka returns your offer with a can of stale soup and doesn't even laugh.
[0] https://slatestarcodex.com/2014/07/30/meditations-on-moloch/