Recent polls report most doctors, nurses, therapists, acupuncturists, chiropractors, dentists,and other healthcare workers (individual “providers”) support single payer Medicare for all... particularly the younger ones.

You appear to be confusing government ownership of hospitals and employing doctors— like the NHS in England or the VA in the US — with single payer systems— like Canada or Traditional Medicare. Sure, there are many flavors of universal coverage, but those that include commercial insurance as well as government…