As an engineer and an ex-libertarian that managed to (thankfully) outgrow it, I have to say that what you describe isn't actually libertarianism as practised and understood by libertarians at large, but your own personal interpretation of it. Is is actually somewhat close to my current views and I would never call myself a libertarian, nor would libertarians call me one of them. You seem to believe in a weak central…
Your discussion of health care systems is simplistic. For example, the US system has a track record of innovation and there are very good reasons that some non-US populations have higher average health that are completely unrelated to health care. While I'm not a libertarian, libertarians don't encourage small government just to hear themselves speak. If one doesn't err on the side of limiting government, you tend to…
People have written books on the subject. Any internet discussion of it is bound to be "simplistic" to some degree.
Really, though, wheels sums it up best: