"...without clergy...."

Without clergy -- without even Eucharistic lay presiders, who are a "form of clergy"? Can you imagine Catholic Christianity without the sacraments, without someone appointed to administer the sacraments to the faithful? In your scheme of things, you want a CC only when it is opposed to administering the sacraments -- unless you anticipate some intermediary invisible hands doing the job. lol You have an abstraction. Now you need a fact of sorts.