Lots I could say.
He seems to have forgotten who it was that tried a 9-11 style attack on London a few years ago, and which group of people tend to have such volatile reactions to incidents and perceived insults that the streets are strewn with broken glass and buildings left in charred ruins.
Muslims make up the vast majority of illegal immigrants in this country and so are a major drain on welfare entitlements and on other things like housing and National Health Service.
I guess that's his ploy to get the Muslim vote. He wants the office of mayor of London, regardless of what it costs the country.