Not to worry, the Brits are leaving the UK in droves. Fully 48% want to leave for other countries for that reason. Plus their leaders have turned over their laws to the EU.
Islam is bottom of the list for reasons they are leaving.
If there were no Muslims or even no nonwhite people in the UK, believe me, we would still have serious social problems. Serious to us, probably minor to an American.
Violence, education, unions, political correctness, a benefit-cum-dependency culture amongst the working class. THOSE are the reasons they are leaving. Frankly little or nothing to do with some nutter in a Mosque in Finsbury Park or Bradford.