Concrete material benefits
1) There is exactly one thing that the left needs to do: Promise and deliver "concrete material benefits." Once again, that's what the Clinton administration is seen as having done (despite X, Y, and Z).
2) This is a huge story that our famously free press has mostly ignored (with some honorable exceptions).
3) Nevertheless, undermining "pillars of the regime" in the political class Yglesias is still possible, "on any given day," given the right propagation strategy and timely message; Pavlina Tcherneva is, after all, an obscure MMTer from a university in a flyover state. (Ultimately, Pavlina's chart made the Times.)