For decades, London has been one of the most cosmopolitan cities in the world. In 1933, journalist Glyn Roberts wrote of England’s great capital, “I still think the parade of peoples and colours and tongues just about the best thing in London.” That “parade” is still in evidence today with the blended smells, sounds, and sights of a global community. The beauty of diversity is part of the breathtaking appeal of one of the world’s greatest cities.

As with any city inhabited by human beings, however, London is not without its problems. Change brings challenges. Cultures sometimes clash. And that is…