Actually the U.S. already spends more public and compulsory funds on healthcare than any of those countries. If spending public funds on healthcare was the determining factor the U.S. would be ahead. The reason Americans spend more on healthcare is not just because we need to, it is because we can spend more, because we are wealthier.
This has been studied and reported numerous times, and where most of the costs that exceed normalcy is because we are the sole country with a for-profit health-care-delivery system. That's the reality. Who do you think ultimately pays for all those t.v. commercials and exorbitant CEO salaries and investor's profits?
Also you didn’t bother to mention all of the other countries which have nationalized healthcare yet have far worse health figures. That’s called cherry picking your data.
So your post was a big red herring.
I intentionally used westernized industrial counties that have a closer equivalency economically to us, thus I "cherry-picked" them for
that reason and that reason alone, thus not for any "red herring".
And your use of Italy to display is not only not much of an equivalent to us but also misses the point that at least
everyone in Italy is covered. It's not the best system by any stretch of the imagination, but at least even the poor can get basic coverage. The last time we were there (my wife was born and raised there), we actually did go to one of the hospitals (in Trapani), and it's a bit "rustic", no doubt, but at least no one goes bankrupt on medical services.