Please don't tarnish all Asians with the same brush as we don't seem to have an problem with Korean, or Japanese, or Thai, etc, grooming gangs here in the UK. These are predominantly Pakistani Muslim rape gangs.
Given that around 90% of the population of the UK is white, I'm not surprised there are more white men being convicted of sexual abuse, grooming etc. That's because there are 9 times more of them. But proportionality is what matters, and we need to understand whether the problem is much more prevalent within a certain cultural section of our population. This is what Rupert Lowe's rape gang enquiry sought to find out, and what many people tried to brush under the carpet by pulling the 'race' card. It is alleged that the perpetrators in these gangs preyed almost exclusively on white working class girls, as they saw them due to their non-muslim status as lower than dirt, and plied them with drugs to do vile and unspeakable things to them.
And what you are discussing with the reported and confirmed incidences that you dealt with. And we all know that the Pakistani grooming gangs has been covered up on mass and the problem if far far greater than the media, our police, or our politicians (some of whom are complicit in covering it up) admit. If things are covered up by the communities that tolerate harbouring these vile individuals, and police don't take the victims seriously, then almost all of these crimes will go unreported.