United Kingdom has been a "nation of immigration" for a number of centuries anyway, and there was an earnest, and highly praiseworthy, effort on the part of UK universities to pick up the world's smartest guys.
I think this latest problem is directly the result of failing to force cultural assimilation on immigrants who've arrived in the last 50 years ~ most likely it's some sort of misplaced guilt over what the Germans did to the Jews.
Brits shoulda' noticed that Islamofascists and their running dog lackeys in the media are NOT Jews, and they should have pulled out that state church of theirs and forced these guys into Christianity, or at least Anglicanism ~ or GO BACK HOME.
2. Why Western governments haven't recognized islam isn't a religion but actually a cult of personality with political aims of world subjugation and as such deserves none of the protections afforded to actual religious organizations.
3. To a degree, islamic zealotry is a result of colonization. It's difficult generation after generation to see someone use a toilet, while you are wiping your ass with hand. There was no motivation for the natives of the colonized lands to learn the good habits, perhaps they should have done with their conquered races with what we did with ours, who also incidentally refused to assimilate; let them open casinos.