If we go by data, the US healthcare system is the most expensive (not arguable) and is not even in the top 5 among developed countries in the most important measures. Also a doc, though that is not really relevant for this discussion.
one of these references is from an US insurance company who you would think would be biased for US healthcare
https://www.cignaglobal.com/blog/healthcare/top-10-countries...
https://www.washingtonpost.com/world/2021/08/05/global-healt...