The vast majority of Muslims live in the UK in a peaceful and law abiding manner, I know it doesn't fit your narrative but every indicator possible shows it.
Islam, same as Christianity and other religions has various denominations/sects. These are often regionalised. Some can be far more extreme in their views than others. Those extremes can often not match the overall culture of a country. A country in the UK’s case which is pretty much non religous at this point as well.
Mormons as an example, who I wouldnt even class as Christian but that’s an arguement for another time, to a higher degree beleive that it’s acceptable to have multiple wives and in many cases it is encouraged. Mormons also to a higher degree, beleive that the age in which someone can get married is far younger than the UK age of consent.
If there were was all of a sudden a mass influx of people wishing to emigrate to the UK from Utah where there is a higher percentage of Mormons, the immigration process should be stricter.
There are parts of Brazil with a large Jehovahs Witness population. I don’t know too much about that religion tbh but enough to know they have some very backward teachings. If people from that part of Brazil
Many Jewish people have Zionist views that are extreme. We should have a stricter immigration process for Israel.
Apply that to Islam. Some sects are pro cousin marriage. Others have women wear the full Burqa. Neither of these are in line with the overall values and culture that the UK. There are other views on homosexuality and women’s rights that are not in line with the overall values and culture of the UK. For parts of Africa, Asia and the Middle East where we you have higher numbers of people within those secs we should have stricter immigration laws.
It’s not about race. Most Mormons and Jews are white. If they hold extreme views we should not allow them in to the country.
We have not had as large an influx of migration or Mormons and Jews compared to Muslims. There are parts of England where you could not go to the supermarket without seeing a woman with a face covering. There are some parts of the country where the NHS is overwhelmed by the health impacts of cousin marriage.
It’s not the majority of Muslims you are right about that. But you can pinpoint the sects of Islam and the countries and regions where people are coming from that do not adhere to British values.