If any and all conversations about immigration are considered a priori 'racist' this doesn't make people's concerns about immigration go away. It simply creates a vacuum for populist figures--who are potentially illiberal--to fillhttps://quillette.com/2019/05/27/how-progressivism-enabled-the-rise-of-the-populist-right/ …
It seems like there was *maybe* just a massive spike around Brexit, without which it looks plausible that the correlation with votes for the populist right might've been quite a lot stronger