Day6 in your posting at 1:08am today (29/03/18) you make a number of assertions in regards to the Labour party and the democracy within it. I will not paste your extensive post as that action would make this posting far too long.
However, in the third paragraph of that post you ask "what power block are hard left Labour out to topple now? The rich by any chance? Where will the revolution begin?"
Well the answer to the above question is quite straightforward, as Labour policy is to strive for a more balanced and equal society with an end to poor housing, poor Health, zero hours employment contracts and the end of the gig economy. How is that to be achieved, by democratic means in the same way as the Labour party has been brought to change in recent years by way of members standing for election at branch, district, region, national and parliamentary levels.
Day6, in your fourth paragraph of the referred to posting, you state that the Labour party has been in slow decline since Jeremy Corbyn became its leader. In response to that I would wish to point out that in the period since Corbyn became leader that party has increased its national membership by over 400,000 with its total membership now above half a million.
Further to the above, at the last general election the Labour party increased the number of seats it holds in the House of Commons, causing the Conservative party to lose its overall majority. Therefore, Day6 I feel that many persons looking at those statistics would find it to be a very strange decline indeed.
Further down in the referred to post Day6 you speak of "The young, quixotic and radically left-wing grassroots members". However, as was referred to in forerunner to this thread, the average age of a Labour party member is fifty one, which is hardly "the young quixtoxic " member portrait you seem to try to paint your posting. However, that stated, left wing they may well be often with good reason, if working in today's zero hour society or gig economy.
Day6, in the latter part of your posting, you speak of Corbyn supporter's being a British Trotsky movement with no respect for Parliamentary democracy. The foregoing begs the question of why those members have stood for election at all levels, and in that democratically moved Labour party policy of the left, which is where the majority of current Labour party members wish it to be.
The foregoing is true democracy in action. It may not be everyone's idea of the Labour party they have always known, but I reject totally that the change has not been brought about by full democratic means.