I do very much agree with you on principle regarding a well functioning health system and e.g. catching things early, using preventive medicine etc. You'll find that it doesn't really work though. Having medical care does not magically turn people into rational patients that will take care of themselves (in fact, I fear the opposite: knowing you're covered no matter what may change your risk profile, which is known as Vollkaskomentalität in German, the mentality that creeps in when you know that everything is paid for).

The US healthcare system is a mess, I don't disagree. I don't believe there are any cheap & easy options to change it however. The grass is always greener on the other side of the Atlantic, but sometimes that's just because tales of success are spread around the world while the problems stay in the local news.