I think your idea of a free market is a little skewed. In almost every industry we have standardization, licensure, and other protocols in place to ensure that whoever is providing a service is adequately trained and competent. this serves as a safeguard for the general public. It has nothing to do with socialism vs capitalism although I can understand the confusion
what you're suggesting is to completely upend the current system of training and checks and balances which has been in place for the last century. Why not restructure medical school instead of developing numerous off shoot wanna be "medical" training programs that have very little standardization, adequate training or education. You're certainly not thinking about the patient. As others have stated above, the intent of midlevels was never to replace physicians.
Interestingly, I've never heard you take a stance on anything except this. Of all things to speak up for it's midlevel FPA? Strange coming from a physician
I highly recommend you read "Patients at Risk” by Physicians for Patient Protection. As someone who is typically open to both sides of the argument, I look forward to your thoughts after reading it