Girls as young as 11 were regarded as making 'lifestyle choices'. Girls were arrested by police for drunken behaviour in the flats in which they were being abused but the men weren't. Yes, white people in authority regard white vulnerable girls as trash and it was obvious that they did so.
https://www.theguardian.com/commentisfree/2017/aug/10/victims-child-abuse-gangs-race-religion
Which has nothing to do with the your idea that social workers and council officials regard white working class girls as 'trash'. Indeed, most council officials, be they male or female, are from the working class, at least they are in my area. So, I'm not sure what point you are making here.
As far as the police are concerned, they should have acted much sooner against these 'groups'. I have no problem at all with that.
As John has already said, Imam Alyas Karmani, a Muslim leader, psychologist and youth worker thinks that a disproportionate nunber of Asian men(although, of course, still only a small percentage of the Muslim community) are involved in grooming offences and that the reasons are to do with the attitudes of the different cultures, and the attitudes towards white girls. In particular he makes the point that this small percentage see white girls as 'less valuable than girls from their own community'. Others have also spoken out, including Ann Cryer, then labour MP in 2003.
So, I see no reason to change my statement that there seems to be a racist element in the activities of these organised groups and we need to discuss this openly, find the reasons why and hopefully combat it.
The fact that one may point to racist elements in any other area is no excuse not to deal with this. I am fully in favour of coming down against grooming of any kind, whether it be by Asians against predominately vulnerable white girls or by white men travelling to Asian countries purely for sexual gratification. The colour doesn't matter to me. The racism and abuse does.