As someone who works within the US healthcare system (I'm here now goofing off!), I can say with certainty that the system is completely, irreparably broken.
The entire concept of healthcare "insurance" is fundamentally flawed. Everyone, except those who are healthy until killed immediately in an accident, will eventually have many, large, health care expenses. Insurance should be reserved for unlikely events - fires, floods, car accidents, early death, etc.
Employer sponsored health care insurance in the US is a historical artifact that developed due to policies adopted during WWII.
I am 100% in favor of free market economics for almost everything. But there are rare exceptions and health care is one of them. There is no way for a free market to function without true price discovery which does not and cannot truly happen with health care. "You want how much to remove my ruptured appendix? That's too much, I'm going to shop around", etc.
The AHCA (aka "Obamacare") is a fatally flawed compromise with the health insurance, medical device and pharmaceutical industries that was never going to fix things. It did do some good things but it did not fix most things. Health care and health insurance costs where already on an unsustainable trajectory and it did nothing to remedy that. Now that trajectory is pinned on Obamacare (partly justified IMO).
Unfortunately political ideologues, political tribalism, and market fundamentalism, has prevented any chance of implementing a rational "single payer" system such as exists in almost every other developed country.
Eventually it will probably happen, but only after things get more broken - enough so that the majority of people are willing to elect a real leader who can overcome the petty politics (if any such leaders still exist!).