Most statistical evidence I've seen seems to show better healthcare for more people in the countries that are spending less than us as a % of gdp.
As Americans, we like to think we have the best solutions, capitalism, free markets, freedom of choice, competition. And for the most part maybe those are the best principles.
But we do don't really even have those things in healthcare. What we have are big monopolies and an almost complete disconnect between the consumer/patient, and choices about what amount of healthcare to consume and who to purchase it from.
So we don't really have a proper capitalist system, and we are afraid to consider government-run healthcare becasue we are told government is bad.
So we're kind of stuck.