If you think that the recent attack by a Black terrorist in London says anything about the harm done by mass immigration, then think again. A great liberal intellectual called Matthew D’Ancona has crushed such racist nonsense with these lines in the world’s greatest newspaper:
...As we now know, the attacker, Khalid Masood, was British, born in Kent and brought up as Adrian Russell Elms. His story is one of radicalisation, the question being when and how he embraced extremist Islamist ideology: the path that led him to an act of murderous violence has nothing to do with immigration. (The Brexiteers’ immigration promises are unravelling fast, The Guardian, 27th March 2017)
http://www.theoccidentalobserver.net/2017/03/born-in-britain-mass-immigration-and-the-twilight-zone/