Their use of the term freedom is manipulative. There's no freedom for the propertyless in a Propertarian - essentially neofeudal - society, and they know it. It's 100% propaganda.

Private solutions ≠ market-oriented solutions.

Markets are emergent phenomena that exist where ever there are free people. They are so natural that even in Soviet Russia markets were endemic, as well as current North Korea. If there exist products people want to buy, and prices are not fixed at gunpoint, there will exist markets.

This is simply not true. And to argue that some sort of minuscule trading is comparable to today's market economies would be ridiculous. There are a lot of stories in colonial history where the colonialists complain that they need to discipline (or euphemistically "civilize") the native population because they have no concept of labour and property - basically they are "lazy" subsistence farmers and need to be introduced to the market, a.k.a. wage labour through the creation of artificial scarcity (e.g. by the colonialists claiming to now own the land and demand a return, or by requiring a tax in the colonialist currency to cover for their "war costs").

Ha yeah libertarians are the kind of people who want to replace the police with private security. I have absolutely no delusions about what kind of society they would create- and as someone who isn't a millionaire there's nothing in it for me.