Isn't that what most of us have been saying all along, Maka? A country is essentially our 'house' writ large. Why would we invite people in who don't like us and want to change the decor and move the furniture around to suit them?
The bigger mystery is why they want to come in the first place? Is it purely economic or do they think they can get away with more in a 'silly', tolerant, Western country than they can in their own? All they have to do is cry "Racism!" or "Religious intolerance" and they reckon they can pretty much do what they wish? Maybe they have forgotten about Henry VIII? As a nation we are quite willing to live and let live (with some rubbing around the sharp edges) but play us for fools too many times and things can get serious pretty fast (as happened for the Catholic church when they plotted treason with the Spanish).
We've (the ordinary people) had enough of 'it' - the general feeling of "play by our rules or go away" is growing apace and we are in real danger of throwing out the baby with the bathwater when such incidents happen as the one this thread is about.