The thing to keep in mind is that the whole idea of a state is that it is the organizational entity (call it a posse if you like) that has the legitimacy to use

The thing to keep in mind is that the whole idea of a state is that it is the organizational entity (call it a posse if you like) that has the legitimacy to use force in the first place. If multiple such groups have the "right" then you have either a coalition state or tribes with warlords, but even that only really changes the level of jurisdiction. It seems to me that some libertarians try to claim theoretical victory by defining their legal enforcement to be a private contractor or somesuch, but as soon as they do that they've simply re-defined the government to be that private contractor (or whoever is controlling them) instead. There's still a state and still governance, whatever you happen to call that particular rose.