“Unless Meghan somehow wins the British public over, she will continue to be on the outs, stuck in the role she made for herself and Harry but does not now like.”
She’d have to give back the golden goose, so...
Suppose, for example, Meghan took on a light-hearted, charming acting role in a movie set in Britain and donated her salary to a popular British charity. And positively radiated good will toward the Brits in the promotional interviews, with her kids and Harry in tow.