Imagine a campaign which investigated the tax affairs and lifestyles of top bankers and hedge fund managers.

This would be much more dangerous than scapegoating MPs, but much more effective in directing public anger. There would be the usual counter-attacks about the politics of envy, but with enough repetition and enough evidence of injustice, those would soon start to lose traction.

Remember Bernays - the way to create movements isn't to present rational arguments, it's to demonstrate and dramatise the point you want to make, and then to leave people free to join the dots and apply the needed political and economic pressure themselves.

This is exactly how the right already works. The left has been incredibly bad at developing an immunity to these tactics - never mind a good positive counter-response.