Not convinced about the connection. As the author mentions this is totally different to the situation in America - which is not exactly renowned for the deep intellectualism of its politics.
Britain’s prime minister? Asian. London’s mayor? Asian. Scotland’s first minister? Asian. His main opponent? Asian. As for the probable next chairman of the BBC, he isn’t Cornish.
Extremely weird of the author to use Cornish here, I am sure that identity has always been underrepresented in British high society