Actually, Love Thy Neighbour showed indigenous and Caribbean people laughing at each other. The comedy was subtle and light-hearted. The commissars of multiculturalism have poisoned race-relations with their agenda of political correctness. They and continued, unsustainable levels of immigration...
I grew up in monocultural 1970s' Lancing. Then I moved to London. My generation was the last to be educated without a multiculturalist agenda, yet I had no problems adapting to my new diverse surroundings.