Corbyn and his version of economics might work, but only if you persuade the rest of the G20 countries to adopt a similar strategy.
Which you can't.
So it doesn't work.
This parochial attitude to how the world works and the interdependency needed in order to even begin to fund your social programme is something Tories and UKIP don't grasp. To hear Corbyn have a similar naive outlook is both unsettling and worrying.
Yes, his priority list with what we have to play with is laudable but you have to generate it first. Go for the bankers' bonuses? That'll fund Birmingham social services for 48 hours.