Just my two cents worth here.
Anarcho-capitalism is neo-feudal bull from my own libertarian stand point.
There isn't a cat in hells chance I would ever support the free market regulating and controling systems of justice, governance and law. Those are the core duties of the state. And yes the state has a place in society. It should be slim and accountable but it should not be replaced by unnacountable profit seeking conglomerations.
That is of course, offered absolutely proof-free.
...as if anarcho-capitalism has any more proof. Look, there's never been an anarcho-capitalist society, so no matter how many metaphors and generalizations you give, you won't be able to prove that anarcho-capitalism works unless you go out and create an anarcho-capitalist society.