Well, first you didn't seem to mind your christians raping their way across the whole planet. Second, it's not the muslims who are doing the stabbings, it's mostly young black boys with jamaican or nigerian ancestry. And those are definitely not muslim.
As far as muslims doing the stabbings, you must be referring to the algerian and moroccan and various other drugies who jumped on the refugee bandwagon fleeing persecution in their respective countries. The fact that the home office doesn't have time from all the other pressing matters to screen them and reject their application properly and quickly has all to do with the government you voted for, not them.