As a British Asian of the same generation, intense feelings overwhelm me when I see Rishi Sunak cross the door into 10 Downing Street. All that envy and bitterness will pass, though. The question then becomes what to expect from the youngest UK prime minister since Napoleonic times. There is much hope of a restoration of competence. There shouldn’t be. Yes, Sunak understood the folly of unfunded tax cuts at a time of fiscal and current account deficits. But that is not proof of a more general wisdom. This is still the man who subsidised people to dine out amid...