What happened to the Confederation of Southern Freeports?? That was the bureocratic tool you are looking for - i doubt a big Zoner collective would do them any good- because if there is one overstructure for all Zoners in Sirius the already hard to keep Zoner neutrality goes down the drain.
Example: Zoners in the Taus might not give a thing about Corsairs, they could even quake about Sairs being Cardamine loving hippies dressed in Blood Diamond glitter like the sissies they are - why? Because there are no Sairs in the Taus and no one will care. Try the same in Omicron Theta and you can built a line of lolgates from Crete to Freeport 9. Zoners are neutral because each small unit of Zoners is neutral to its individual surroundings.
Pull them all under one hat and you get that line of lolgates with a frustrated Theta Zoner that can't stop the Tau Zoner from making what-to-feed-the-hungry-sair gameshows and still gets blamed as they all belong to the same overstructure.
As someone who has first hand experiance in democratic leadership for factions i have to admit that this system has severe downsides, even if it is much fairer and "indy-inclusive" than a one man per faction dictatorship (at least in my opinion)- you will get the blame for everything, especially if it is neither your fault nor within your bounds to control....but well, maybe the Zoners can optimize the procedure