Is US Vice President JD Vance right that British politics is broken?

US Vice President JD Vance recently stated that Britain has been failed by its leadership for a long time, describing its politics as very broken and noting the country is about to appoint its seventh prime minister in a decade. He expressed hope that Greater Manchester Mayor Andy Burnham, widely expected to succeed outgoing Prime Minister Keir Starmer, can deliver significant structural change. Vance's comments echo earlier criticisms of UK energy costs, immigration, and economic pressures on the middle class.