English are rapidly becoming a minority in England. Many towns and cities are well less than 50% native English. There are millions in the UK who are opposed to being replaced by Africans and Middle Eastern people. This is a natural and sensible response to the situation that literally any nation of people would also share.
The most likely candidates are places like Bradford and Birmingham, which are still - according to wikipedia - 60%+ white british, that's without even considering british asian or other people born in and native to the UK.
Again, sorry, I can't find any sources to support your facts here, maybe I looked in a different place to you, so perhaps you could share your sources?