Well, the clearing union would have "an organisation, with accompanying bureaucracy". Someone has to build and operate the systems. A vivid image of what should exist acts as a surrogate for reality. Pursuit of the image then prevents pursuit of the reality -- John K. Galbraith
As you know, I have long believed that a partnership between a Cooperative of Service Providers and a Cooperative of Service Users is probably an optimal enterprise model... "Any economic unit can emit money. The serious problem is to get it accepted" Hyman Minsky