One thing to note about US healthcare is that it seems almost deliberately engineered to not be a market.
I've never received significant health care in another country, so I can't say how the US system differs from others with any expertise. But I can say how US health care differs from just about anything else I spend money on:
1. I don't really get to shop for health insurance providers. My employer picks one, maybe two plans, and I can take it or leave it. If I leave it, I am leaving at least $10,000/year on the table, so I generally take it.
2. Even when I am on the market, the phenomenon in #1 does weird things. Once upon a time, when I was choosing my own health insurance, I started a new job with health insurance benefits that I did choose to take. But my start date was toward the beginning of the month, my old insurance wouldn't let me do a partial month, and the new employer wouldn't let me delay opting for coverage. So I was essentially forced to own two health insurance plans simultaneously for a period of time.
3. Nobody knows what care will cost ahead of time, which makes it impossible for me to make any informed economic decisions. I need to see a physical therapist. I called a few places to shop for prices. They all know what the rate for uninsured people is, but the only way we can find out what it will cost with my insurance is if I receive care, they submit a claim, and then we all find out together what the price was, after the fact.
4. #3 creates a situation where they can hide all sorts of excessive charges. When my first child was born, I got lessons on how to give him a bath and change his diaper. Both of which I already knew; I was really just going along with the lessons to be polite. I certainly wouldn't have said yes if the hospital had been transparent and up-front about the price tag on this lesson: about $2,000.
5. And sure, insurance covered most of it... but that didn't make it free; it just means the price was amortized over a large number of health insurance premiums. Unfortunately, I think that this setup makes it all too easy for us to think of these things as free, which, in turn, reduces public scrutiny over where the money comes from or where it goes.
And it just keeps going like that. Compare with signing up for cell phone service. It's a famously sleazy business, but, even with all the hidden fees they like to tack on, at least they're up-front about the basic price of service. With US health care, every fee is a hidden fee. That makes it impossible for consumers to make free, informed decisions, which is the most fundamental precondition that must be satisfied in order for a capitalist market to form.