It ain't complicated.
Any attempt to implement Socialized Medicine (no matter what you call it) in the U.S. would be unconstitutional. Congress simply does not have the power to do it, despite what some Leftist charlatans try to tell their gullible supporters.
Therefore, it would take a CONSTITUTIONAL AMENDMENT to do it, and it is common knowledge that there is no national consensus on the need for Socialized Medicine, so a Constitutional Amendment will not happen in the foreseeable future. It is indeed noteworthy that none of the proponents of Socialized Medicine in Congress have even considered introducing the necessary Amendment, because they know there is no consensus.
From an economic standpoint, any attempt to convert ONE -SIXTH OF THE UNITED STATES ECONOMY into a government-run, socialist regime would be disastrous. Would doctors and other practitioners be willing to work for a government salary and benefits? Could "we" force them to do so without violating the Thirteenth Amendment? How would "we" transfer ownership of thousands and thousands of hospitals, clinics, nursing homes, etc., to government ownership. The level of FRAUD, WASTE, and ABUSE would be phenomenal.
It is easy to cherry-pick statistics to "prove" that healthcare in the U.S. sucks, but when the majority of the population finds it better than acceptable, good luck convincing "us" of that fact.
It is foolish to even have these discussions, even on line. It's like debating the erection of a highway to the moon. It ain't ever happening, so why debate it?