During the visit, Starmer went out of his way to praise President Xi and other senior figures. At one point he gently reprimanded Peter Kyle, the business secretary, for failing to bow deeply enough to his counterpart at a formal ceremony for the signing of a series of agreements between Britain and China. Kyle joked that the “only diplomatic incident of the trip was British on British”. It meant that challenging issues — human rights, the persecution of the Uighurs and the incarceration of the pro-democracy campaigner Jimmy Lai — were not mentioned in any of the official readouts. Nor...