Healthcare is not a normal market. When people are really sick they will pay anything up to getting bankrupt so that they are treated. Normal people cannot shop around too much or wait a month or two for a better offer. So a little of collusion between healthcare providers will go a long way towards gouging "customers".
Everywhere else in the entire Western world, government have established single user pay systems. Even in America this is true for the elderly with Medicare. For the general population, the actual cost of care in the US is 2x or 3x more than everywhere else in the world. Why is that?
Healthcare is not like a new smartphone and market principles do not apply to every situations.
This meme is stupid. Collusion in any market will affect the operation of the market, but healthcare is not special. Sure, if you're unconscious you don't make choices about what treatment to receive, but if I'm conscious and need to be rushed to the hospital I certainly do know which hospital I will go to. If you don't have multiple hospitals to choose from it's because you've previously CHOSEN to live in an area with only one hospital.
But the vast majority of medical decisions aren't a "seconds count" life or death decision. Most Americans who are dealing with health issues do so for years, sometimes decades, of daily medication and weekly or monthly doctor visits. They have plenty of time for research and choices for the vast majority of their medical decisions.
In fact, I'll bet that smokers with lung cancer probably spend more time researching doctors and treatments than they ever spent researching which brand of cigarettes to buy.
Market principles certainly do apply. If you've just GOT TO HAVE an iPhone then you'll pay whatever Apple is charging, but if you are willing to look at options, they exist. If you've just GOT TO HAVE the one drug that you're sure (either based on your deep scientific expertise or just your gut feeling) is the best for your condition then you'll pay whatever the price is, but there are certainly other treatment options even if they are objectively inferior. But depending on what your phone buying criteria are, it's quite possible that the non-iPhone is objectively inferior on the specific evaluation criteria that you weight the highest.
Also, the per capita death rate is and always has been constant. It's one death per person, eventually.
There is some variation in years lived per person and in level of comfort during both the healthy years and the last days/weeks/months of dying, but there is no credible evidence yet of any cure for death. So hysterics over "people are going to die" or "republicans don't care if people die" is utter nonsense. Neither Obama, nor Clinton, nor the DNC has a cure for death. The question is how to ensure the best availability of treatment options and the best incentives for researchers to develop new treatments and find ways to provide existing treatments more efficiently.