First its not really relevant to this thread, as Abdurraheem Green was only not born in the UK due to his father's occupation and secondly, it is not true of all Muslims.
I have said this plenty of times, Turks and Turkish Cypriots in London integrated, they wanted to, they made the effort to and they had barely any help doing so. Lots of Muslims want to integrate and do, but sadly lots don't and end up forming communities which make it harder for people in those communities to integrate even if they want to.