In the early days of January 2019 Meghan Markle, Duchess of Sussex, a working royal, was visiting the Variety Club Nursing Home for showbiz veterans. Presumably to cheer their days. But it was soon clear who was cheering whom. The doughty old troopers in Twickenham were putting on the razzle dazzle for the duchess. Because Meghan was stressed, in the slough of despond in fact. The culture shock of moving from Hollywood to Britain’s stiff upper echelons explained some of it. Observing this at the time, I wrote that the constraints of royalty had cost her her ring of confidence,…