Anyone who has seen the Godfather knows that the US has libertarian law. It isn't a dream, it's a nightmare.
Cause movies are an accurate portrayal of society.
Correct. Mario Puzo's books, and the films based around it, are a relatively close fictionalisation of stuff that happened.
Private law is basically the Mafia. It exists. You pay Don X to protect you- to enforce black market contracts, to punish thieves, to do little favours and so on. In return, the Mafia has all the power. The merit principle doesn't apply, because every job is a gift. And it's very violent. It doesn't work at all like glibertarians say it would.
As a smart person once said about Milton Friedman- the real weakness with his ideas is that they have been tried.