you both know that since the 1950s (when less than half a percent were not born here) England's population has changed radically

Why, with all your qualifications and world experience can you not see that as a racially charged statement? Making comments like that is either racist or totally insensitive. Either way you need to stop. But, hey, that is just my advice for if you want to stop being binned. Take it or leave it. No skin off my nose.