The difference Freddo is that the authorities didn't believe or didn't know about the activities of Saville, Smith and Harris.
In the case of the multiple Muslim pedophile gangs they did know and were too afraid/politically correct to protect the victims.
Once again NOBODY is saying that all muslims are pedophiles - although their beloved prophet did set the example by repeatedly raping a nine year old - or that child abuse is a uniquely Muslim crime.
The problem is that many immigrants have come from deeply misogynistic cultures where unprotected girls - especially non-muslim girls - are viewed as fair game. A woman is the possession of her father and then her husband. An unattached girl such as those in Council care is viewed with no respect. Living in a free and liberal society like England provides them with an abundance of opportunities for predatory sex. If you doubt this explanation of Muslim culture check out the recent comments of Maajid Nawaz on LBC radio.
For decades the ridiculous, self-loathing doctrine of multiculturalism made it impossible to criticise other cultures without suffering professional ostracism, even when there were victims. It was easier to blame the teenage girls for being precocious or immoral.
In 2011 Cameron. Merkel and Sarkozy admitted that multiculturalism has failed. Too late, the damage is probably irreparable..