You’re right about the American hospital, generally and for now. They have better resources, equipment, and are cleaner, among many other things. You have more rights in an American hospital (no bribe expected).
But, a country like the United States could learn from a country like Croatia and make the best out of its resources. The US could spend the same on healthcare without taking away resources from the general American populace (minus oligarchs) and allow people to be so much more healthier.
The fundamental problem is that a lot of Americans lead very unhealthy lifestyles, and this is reflected in the outcomes and the medical spend, despite world class medical care doing its best.