I went down a rabbit hole about this last night.
It seems like most of Pakistani immigrants to the UK, and most of the grooming gangs, weren't just Pakistani but from a region called the Mirpur valley, which is a fascinating history and has been largely isolated from the rest of Pakistan due to it's remote location for centuries.
I read a couple of articles about the honour-based approach to sexual conduct and the clan structures in the area and how this culture could have contributed to the abuse.
You might be aware already but it was all new to me and very interesting.
It also highlighted the problems with calling the gangs "Asian", as there is no increased risk associated with large Indian or Bangladeshi populations in an area. It's not the Asian diaspora, it's Pakistan, and a very small region of Pakistan at that.