Scroll through any Facebook feed in Britain and, between the baby announcements and petty neighbourhood beefs, you’re likely to come across an account with a union jack profile picture and a vague, generic name like Britain Today.

These accounts – and there are hundreds, possibly thousands of them – present themselves as the work of British patriots. In one typical, AI-generated video, a middle-aged man claims his local cafe “has stopped serving pork, bacon and sausages just to avoid offending people”.