I'm perfectly willing to believe that US has many, many issues that compound the curse - with some low hanging fruits among them.

But there are numerous countries that aren't US, and don't share US laws.

Do they have medical staff that's not overworked, or a healthcare system that doesn't suffer from a constant labor shortage, long wait times, poor treatment quality, or all of the above?

The root of the issue is deeper than just "US is uniquely dumb".