This is a two part answer. 1) The historical answer until Obama's administration: They hear that it is called Socialized Healthcare. Socialized is a derivati

This is a two part answer. 1) The historical answer until Obama's administration: They hear that it is called Socialized Healthcare. Socialized is a derivative of "Socialism". Not taking into account the myths about American Exceptionalism mentioned in the article (which are very valid), for many, many Americans Socialism = Stalinism. Then they turn on the TV, and see health industry funded politicians selectively pointing out the worst aspects of socialized healthcare, and the best parts of the capitalist model (and if you can afford access, the American model has some great aspects). That's usually enough for most people to think that ultimately socialized healthcare doesn't actually work, even if it wasn't associated with a tyrant who's successors threatened most of the living population with nuclear annihilation. So, given the proposition of a "non-working" healthcare system that is associated with mass murder, Americans see no other choice than in the healthcare system that they have. Whereupon they take a strong pride in the fact that they were able to achieve their own level of care. An: I worked hard to get my healthcare, it is part of my status, and now you want to devalue what I had to work for by giving it to everybody for free?, mentality takes hold. And if all of that doesn't work to block the idea, the health insurance lobby simply ensures that media and politicans talk as IF the above was all true. Because the second half of this question is that since Obama's administration, 60% of Americans DO believe it is the responsibility of the federal government to provide healthcare to Americans. But if you watch Republican aligned media, they will simply act as if the majority of the populace is still opposed to healthcare because of the old story above. The vast majority of Americans don't have access to polling data, and naively and incorrectly assume that the average of their friends and media sources is representative of the viewpoints of the rest of the country.