It's all relative, though. First of all, America's population is enormous, and, unlike the other countries you named, your immigration policies are comparitively relaxed.
Then you've got to factor in the vast numbers of uneducated people who come to your shores thinking bald eagles fly majestically just about everywhere and that the streets are literally paved with gold. Is the quality of life often better than their third-world homelands? For sure it is. But most of the lot are pacified by propaganda and are simply stepping up to a different kind of poverty, frankly.
Abraham Lincoln said that the government's role was to do what individual citizens could not effectively do themselves. For a small portion of the US population, money is not an issue, and therefore the pay-to-play health care system they've grown accustomed to is wonderful. But for the majority of population, money is a big issue; and since the poor have historically been even more prone to illness than the rich, the system needed to change. I don't view it as anti-American, anti-Christian or anti-liberty at all, and no one should. The US has some of the best health care professionals in the world, and this fact is going to carry over. Americans seem to think that by cutting the "best" doctor the biggest check, their medical sorcery is going to work all the more. Call that a thriving market system if you like, but I call it inherently problematic.