When it was revealed earlier this month that the number of people who had reached the UK on small boats since Labour came to power in July 2024 had reached 50,000, the familiar circus of blame began. The Tories reproached Labour for scrapping the dismal Rwanda plan; Labour pointed to the legacy left by the Tories; Reform, as ever, reaped the spoils. But the tussle between the dominant parties over who can most bullishly ‘defend’ Britain’s borders is not only an ugly spectacle; it rests on a misguided premise.