For the abuse to take off and become widespread, you need
- gangs of men who know and trust one another, who form a sort of closed community;
- a culture of omerta (so no-one dobs them in)
- a culture of teflon-coating (so they're seen as untouchable by the law for some reason or other)
- an othering of the victims ("teenage prozzies", "just kids in care", "probably lying, these kids always do you know", etc.
Race is not on this list, because race is incidental - it just mirrors the particular society in which the abuse is taking place in. Rotherham - large Asian community. So there were Asian grooming gangs. Where I currently live - overwhelmingly white. So the gangs operating in the market towns are predominantly white. (I have friends in the police and social services who work in this area, so I get to hear what goes on).
Some examples:
Priests (in a number of denominations, Catholic priests having probably had most publicity). Closed culture? Tick. Culture of secrecy? What's more secret than the confessional? Powerful? Yes - if you share their beliefs, you think they can literally send you to hell by withholding absolution. Teflon coating? Being seen as "good people" because that's what religions typically claim of their priesthood. Race? In this case white, because that reflects the demographic they are drawn from.
TV celebrities. Power (the ability to reach into millions of homes, the backing of the secular cult of celebrity our culture worships). Tick. Omerta? Broadcasting companies have whole teams of lawyers and we have the most draconian libel laws in the world. Teflon coating? Lots of good work for charity. Race? Again, in this case, white, because that reflects the demographic they are drawn from.
Taxi drivers in Rotherham. Power - in this case very low in the grand scheme of things, but considerable relative to their victims, just in virtue of having transport, having enough money to buy their victims drugs/ciggies/alcohol. Omerta - closed demographic group under attack from the wider society which creates an "us against them" mentality of not going to the police. Teflon coating - it's been argued that race did play a role here, because police didn't want to be seen as racist. But if one knows about the engrained misogyny of the police forces up in that neck of the woods (I lived and worked there for many, may years), the police attitude towards the victims ("teen prozzies and druggies, no better than they should be...") are more likely to explain the lack of action. Race - in this instance Asian, but again (as above) because that happens to be the demographic of the area they were working in.
What is overwhelmingly the case is that the perpetrators were overwhelmingly likely to be men (you get the occasional case of women involved in trafficking, usually as part of organised family gangs, but overwhelmingly, at around the 99% level, they're male).