I've wondered how the Brit establishment could take this affront so calmly, and the explanation comes from that always-interesting British-educated import from Canada, Mark Steyn. See his May 28, 2018, column at the Steyn Online website, and scroll down:
To Mad Ash and his fellow 'Asians', the likes of Jessica and Katie are 'white slags'. To Her Majesty's Constabulary, they're mere 'Paki-shaggers', and thus unworthy of valuable police resources.Translation, for non-Anglophiles: The Pakistanis who do the grooming view the minor girls as whores whose parents, if any, don't care (or can't control) what they do, something Muslim parents don't allow.
The British police view the involved minor girls as so debased they would sleep with non-white men and, as such, are beneath contempt and deserving of their fate, however poor, nasty, brutish and short. This contempt is part of that amazing rigid class thing the Brits are famous for.
The "lower orders" in Britain are thought (expected?) to do all manner of lewd things. The attitude isn't new, George MacDonald Fraser wrote about it in the Flashman novels set in the mid-1800s.
Flashman and his posh cronies romp with saucy lower class young women they call "dollymops," meaning amateur or part-time prostitutes. Basically, bored shop girls looking for someone to spend money on them, trading their youth and sex for "upstairs" food, drink and excitement. Cinderella anyone?