The most important point may be about attaching dollar signs to things. I have a hard time seeing how things like parks would be preserved without government intervention, unless, perhaps, dollar signs were attached to virtually everything. A disconnect to understanding this, for others as well as myself, is that it just doesn't make logistical sense how we could move from one to the other.

I am fully convinced that in the area of non-scarce resources, markets work just fine, but scarcity does change things. Another aspect is that voters have a certain sort of regulatory capture of their governments. We see this with things like height limits and price controls on buildings. A purely free market might work way better for most people -- it may be the most democratic thing there is -- but it would still put the boot to all sorts of special interests that people vote for