(you get separate comments because you lump so many different subjects together in one message)
You sound surprised that your proposal for radically changing membership requirement and organisation of ALP branches, which worked to the disadvantage of the incumbents, had some proposals radically different to expected practice, and had practical problems (I note you are actually touting the practical problems with a jury system as an advantage). I think anyone who put forward such a proposal with any expectation of adoption would be verging on megalomania.