A free market contrasts with a controlled market or regulated market, in which government intervenes in supply and demand through non-market methods such as laws controlling who is allowed to enter the market, mandating what type of product or service is supplied, or directly setting prices.
The array of regulations that govern health care can seem overwhelming to people who work in the industry. Almost every aspect of the field is overseen by one regulatory body or another, and sometimes by several.
- Why Is Health Care Regulation So Complex? http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2730786/
In other words: American anti-government attitude says a lot more about their own government than more general consideration in political theory.
For those readers unfamiliar with US healthcare, the US in effect has several independent healthcare systems. Around 90% of veterans get healthcare through the Veterans Health Administration. It provides a healthcare system that uses the same model the Britain uses.
For Americans 65 and older, we have Medicare, which uses the same model Canada uses.
For Americans who get health insurance through their employer, we are similar to Germany.
For Americans that do not fit into the above three groups, we are Cambodia or rural India, where you can see a doctor if you can pay the bill yourself out of pocket, or if you are so sick that you can be treated in the emergency room at a hospital.