This is something I have discussed briefly here, with poetix, in reference to the goblin nonce incident.
My feeling is that it is very difficult to fight myth with the mundane. And this is high stakes stuff and perhaps I'm very wrong but my instinct says that you need to meet that with counter-myth. So that you don't cede that ground to The Enemy. So that myth doesn't become de facto hierarchical, brutal, regressive. Am I making sense?
This is true for the straightforward reason that everyone's psyche operates on the level of the mythic - as is seen again and again when 'rational' explanations of behaviour founder what people actually do. I do think however that because of the hierarchy of alleged rationalism, that any functional left must be fighting simultaneously on the level of the mythic and the mundane, because mundane rationalism is what people
imagine that they're doing, and so a rightist critique of the Left's inability to be specific about what it would actually do, is very effective.
This is similar to a discussion I was having recently about why the Left so often fails: because it cannot seem to grasp that to sell something to the masses, you need to make 'them' see that their lives and souls would be enriched - not just harangue them on a moral level about how bad they've been. And that does require an appeal to the ineffable to be effective.
I think Danny's point about Corbyn's 2017 mythos is very pertinent here - he was presenting himself as defender of a generation's hopes and dreams, of the very soul of the future. Before he started talking about fucking Brexit.