Such a scenario, exploring what if the United States had lost the American Revolution.
Or, as this textbook from an alternate 1970s might put it, if the Rebellion had been crushed by the British Empire.
Another amateur map enthusiast online has explored the “1,000 Week Reich,” which they describe as a “realistic” Nazi victory scenario: “In basic terms, Germany signs an armistice with Britain in early 1941, wins the war against the USSR at great cost, and continues having to fight a guerrilla insurgency in Eastern Europe for years as Britain and America build a close alliance in opposition to them.
BBC 9 November 2020
Virtual History: Alternatives And Counterfactuals by Niall Ferguson