Interesting the comparison with Brexit. As a working-class Remain voter (yes, we do exist, although you'd never think so to listen to the TV news), I'm going to disagree a little with @MargotBamborough . My argument at the time was that the claims of wages being depressed by immigration were arguably exaggerated, and even of they weren't,
a) All governments want immigration, even when they claim they don't. Tories who suggested to people, we'll send the Poles back home, would only replace them with more immigration from India or Pakistan, and how do you like those apples? Which is exactly what happened. Tories had been promising for years to cut immigration, remember Theresa May? And she didn't of course.
b) Do you really think Leave will result in an economic bonanza, when when we've just made trade with our nearest partners more difficult?
c) The Labour Party and the unions cravenly tacitly accepted the govt's view. Rather than appeal to the best motives of working people, they appealed to fear, and xenophobia. Why shouldn't working-class kids get the chance to go to uni in Paris or Barcelona? The only difference Brexit has made to w-c people is, gaps on the shelves in the supermarkets and longer queues at the airport going on holiday.
Anyway, the point I'm trying to make is that I wish the Labour Party, and the left in general, would be straight with people. IMO, they could have argued honestly for Remain, which would have been, on balance, to the benefit of Brits of all social classes. But they didn't. Just like they are not prepared to speak honestly to women, with Starmer unable to say what a woman is, until he's put it through the latest focus group. My contempt for them could not be greater. For all the reservations I have about the Spiked crew, BON is right on this.