Simon, interesting response to OJ. I would agree that he doesn’t come up with a plan but I believe this is mainly because his readers are not ready to hear what he really thinks: that Corbynism is unworkable in practice and that it would be crushed by the voters at a General Election. Hence, he is gently leading his followers by asking hard questions and getting them to question the flaws in Corbynism by themselves.
Not going to respond to every point you wrote (I can if you really want me to!) but here are a few things to consider:
Part 1
Regarding the polling Labour has consistently been behind the Tories in the polls while Corbyn has been leader so he can’t really blame the ‘coup’ on Labour’s dire poll ratings.
Labour’s official policies are unchanged on the last Election because they are changed at Conference, the last of which was less than one year ago. Corbyn, of course, recently voted against Official Labour policy on Trident…
Saying that you don’t need to win over Conservative voters makes no sense under FPTP. In order to win a majority Labour needs to win seats from the Conservatives. They can only doing this by winning over people who vote Conservative. And the thing about non-voters is that their defining feature is that they don’t vote.
Even if they decide to do so there is no evidence that they are more likely to vote Labour. Look at the EU Referendum. This was a golden opportunity for Corbyn to show he could mobilise non-voters yet he failed to do so. Why do you think this would be any different in a General Election?
I also wouldn’t get too carried away with the idea of shifting the Overton Window. Ed Miliband thought he was doing that and look what happened to him…