I mostly agree, with one small quibble... Voluntaryists and individualists should squat the "Cosa Nostra" term territory.

It translates to OUR THING and the Mafia is a voluntary collective of anti-State Agorist who just want to run their communities the way they'd like.

Aside from the unfortunate fact that most Mafia activity flagrantly breaks the NAP... if you imagine the Mafia without the police messing with them it would be pretty nice: your local private protection agency that fights off outside aggression for you, traffics "illegal" goods to your door, will always give you a loan, etc. If you don't want their services, you should move elsewhere (because the services aren't exactly optional...), but if you are a customer, you're family, and it's also "your thing".

I'm only like 80% joking. "Our thing" is just too good to pass up on for the anarcho-minded