Trust me, I know such places, and I have no romantic notion of the Mafia. But I think there's a way to compare things that doesn't equate them. Same for the Greenwald quote in the grand-grand-grand-...-parent.
The quote only serves to show that the person in question knows little to nothing about actual mafias. Or - more likely - was understandably caught up in the heat of the moment and didn't research what he was writing. He's wrong, but I'd certainly cut him some slack.