If you read a little history, you will discover that back in the 1950's,  the American Medical Association equated 'socialized medicine' with 'socialism' because that was equivalent to Communism and therefore anathema to all God-fearing, right-thinking, red-blooded Americans.

You know, Berlin Blockade, Shooting Korean War, type Communism?  'Duck and cover under your desks' Communism?  Soon to be joined by Eisenhower's Domino Theory and JFK's Cuban Missile Crisis,, Viet Nam War Communism.

The AMA has ridden that horse so successfully that 'socialized medicine' still reeks of that taint.

Today, the VA's version of 'socialized medicine' where people die while on lengthy waiting lists and VA bureaucrats not only can't get fired but get bonuses while lying about those wait lists doesn't  make most of us too eager to try a larger version of it.