"Surely the main issue with these grooming gangs is how law enforcement overlooked the abuse of these girls out of fear that they would appear to be racist? "
The main reason is that they thought they were consenting, proactive in the "relationships" - they saw them as "tarts" - off the rails girls who were running around with older boyfriends and getting in "trouble".
Do you really believe that all of the police, all of the social workers involved saw this for what it was - that children were being raped en masse - and decided that although it was obviosuly an appalling state of affairs and there were 100s of victims, they would cover it up and not say anything, to the extent of turning parents away when they sought help etc?
No - they saw them as "child prostitutes" not as victims at all, they weren't feeling that there was all this rape happening and they were powerless to act, they were feeling that these bloody girls were a PITA.
The authorities simply, and literally, failed to recognise that these girls were victims at all.
The police said of the story I linked upthread - " "We have been speaking with the family and will continue to do so we can fully understand their concerns"."
They STILL don;t really understand what the problem was.