No need for confusion over what to call people, stick to terms that don't upset them, call those from a Pakistanu background Pakistanis, or Yorkshire folk with a Pakistani background.
Call black people black, call them black British if that's what they are. Muslims come in all colours and ethnicities, as do Christians, indeed there are Pakistani Christians.
As for the reflex well what about girls from a certain background, only this one mind, why are these people seemingly OK with it when it goes on perpetrated by white men. It's wrong full stop, and the paedophile I've known, obviously have not known it at the time, just later, they have all been white British so called Christians. I'm against it whoever does it and wish we could deport anyone who does it to a distant island when they have done their time.