I don't think anyone is saying it's a Muslim problem. There is a specific problem with Pakistani grooming gangs (this issue). It was covered up and allowed to happen because people were scared to speak up for fear of being called racist. You might say a systemic problem caused by race - just the opposite of what we normally think of when we talk about systemic racism.
In my opinion we had it right when I was growing up and we were taught people are people and accept people for who they are. Now everything is reduced to race (eg BLM) so unfortunately this is one of the outcomes of that.
To say there is a problem with Muslim Pakistani rapists does not equate to all Muslim Pakistani men are racists.
There are also problems in families, online grooming, sex trade etc. We just aren't talking about those right now.
Also the 'us' and 'them' narrative was set by these rapist men. They raped because of skin colour and seeing the girls as unholy and unworthy. We were all happy to live and let live remember, so much so that it got covered up.
What does this mean? I don't know but I do strongly feel the reduction of everything to one thing (be it race, misogyny, whatever) just doesn't work. It's a very complex problem but it does deserve to be discussed without fear of being brandished a racist.