I believe that many UK white citizens, see large numbers of a culture alien to themselves, and apply Sharia law, upon their community, within their community, and that is an alien culture to the local community, so they are fearful of where that system goes.
The fear is that existing UK residents see people moving here, in numbers, that are unable to speak English, form pockets of their own community, and don't integrate with society.
I was at an eatery on Manchesters famous 'curry mile', with excellent foreign food available, and posted on the wall was a 'memo', to boycott several large companies, because they didn't abide by Muslim, or whatever rules.
I don't see similar notices in my local chippy, so I'd refer that to as racist. So when anyone that follows rules that says that the Koran is correct, and anyone that disobeys it is an infidel, and must be killed, I'm worried. So do people follow the Koran religiously, as intended, or do they take little pieces of it, and say, yes to this, no to that?
I don't believe that Moses walked up a Mountain, and walked back down with two tablets with the 10 commandments on them, and must be obeyed, but they were broken..oops, or a burning bush talking to people...but Muslims take their bible literally? An eye for an eye?
So it's OK for Muslims to be abusive, and racist against the people whose country they reside in?
When people from this land visit a Muslim country, we generally abide by the rules there, by covering heads, and not drinking...Why do you not abide by the rules here?
Religion has caused more wars than anything else, but while in your host country, abide by that countries rules. No clans, No Sharia law, no not integrating. We don't run a hotel here. Abide by the law, if you have a complaint, then leave. And the people of the UK, if you don't like it, leave also.