Mainly, I don't think it's enough. It's never been enough, anywhere, ever -- more structure always emerges. You have property rights, sound money, etc., and then your neighbor starts doing something that pisses you off that is not exactly coercive, but out-of-bounds. Everyone around you agrees that there's something wrong with this asshole. And social structure emerges. Somebody winds up 'coercing' somebody else in the end.

Keynes and Hayek had an exchange after H published "The Road to Serfdom" where Keynes basically said (paraphrasing): "I am totally on board with this, it's great, except: how are you going to realize it in practice? What, literally, are you going to do?" Which I think is telling. If you have to get really concrete about what to do in realistic circumstances, the simplistic things fall away.

But this, or something like it, has been litigated since Plato, and we're not going to resolve it on SN. I appreciate you riffing with me a bit on the topic, it is more real than random Twitter drive-bys, and helps me get perspective.