Donald Trump’s election will be “the biggest f**k-you ever recorded in human history,” predicted the film-maker Michael Moore in the summer of 2016. He reminded his Midwestern audience that it was Trump who had the audacity to meet with CEOs of Ford Motor Company and warn them: if you move your factories to Mexico, I will slap a 35% tariff on all your imports to the United States. We laughed. Trump won. Moore became a prophet.