Ultimately, it's about pay. This covers some of the history: https://www.kqed.org/news/11902591/why-do-so-many-doctors-oppose-single-payer-health-care https://

Ultimately, it's about pay. This covers some of the history: https://www.kqed.org/news/11902591/why-do-so-many-doctors-oppose-single-payer-health-care https://www.kqed.org/news/11902591/why-do-so-many-doctors-op... That people believe healthcare providers, where the vast majority of the $4.5 trillion in healthcare spending ultimately goes, are just barely getting by and that they're being robbed by insurance companies (~5% of spending) should be ample evidence of how powerful they are. Never mind that private insurance reimbursement rates are higher than Medicare's and even Medicare's rates are double that of every other advanced developed country.