It's largely a side effect of a couple things... first the ACA (ObamaCare) limited the percentage of profit that insurance and medical providers can make... so they instead just grow the pie larger by inflating everything. Second is that they are allowed to have effectively vertical monopoly investments controlling multiple layers of healthcare as a whole from insurance, providers, pharma and pharmacies.

Trust busting and multiple supply lines really need to be established in order to have a chance at restoring normalcy. Which is all but impossible as Pharma alone is the single biggest spender of advertising alone, let alone policy influence over politicians.

The problem is that the insurance is provided by private companies whose incentive is to earn as much money as possible, at cost of the people in need of medical care. In my country, I never heard of anyone going bancrupt over a hospital bill. It just isn't a thing.

Here's a fun story: my sister was living with an exchange student from the US. Some day the student was complaining about intense intestinal pain she's had for the past few days. My sister told her to go the hospital. The student asked her if she was crazy. My sister then had to explain her that hospitals are free and won't bancrupt her...