Americans pay multiples more per capita, and receive worse healthcare based on outcomes compared to European nations. The UK on average has better oral health than the USA, but Americans love to joke about British teeth... I think the US believes it's own "free market" propaganda too much. Clearly socialised universal healthcare (which every G20 nation does outside the US) is a better system.

You're painting with a fairly broad brush. Opinions in the US are diverse, and generally more in support of socialized healthcare than against.

We're not far from half the US population having what amounts to universal healthcare already, even without making it official. I sometimes wonder how high it will get before people come to the realization that we're already close enough to that point and going the rest of the way is viable.