> If it were truly the lowest-cost, best-outcome method to deliver care to an entire population, don't you think one of the hundreds of countries would have proven that by now?

So, do you think everything's already been solved? There have been 100 billion people in Earth's history. Wouldn't you think one of them would have proved P vs NP by now?

If you have a legitimate argument against a cleaner, free(r), less corrupt health-care system, feel free to bring it forward.

But no, in modern medicine's one century of existence, the problem of finding the best health-care implementation has almost certainly not been solved. In fact, only a dozen or so countries have had the economic capability to sustain modern medical practice on a large scale for more than a couple decades. The others constitute the "second/third worlds."