Jack's Little Englandism is about as convincing as its Cornish camembert

The new Tesco chain prides itself on its British products – but it’s really selling the myth of post-Brexit self-sufficiencyIn the early hours of Thursday morning in Chatteris, Cambridgeshire, an orderly queue began to form in the drizzle. No celebrity awaited the hardy queuers, no new iPhone or EL James novel. No, what occasioned this marathon of patience was the opening of Tesco’s first discount store, Jack’s. Aimed at giving Aldi and Lidl – who in the past five y