The more Europe breaks down into nationalist enclaves with tight borders the nearer we get to the pre-war situation and the greater will be the number of territorial conflicts.
Although Smiffy intends it as a pejorative comment - he's right. We cannot turn back the clock. The world is a multicultural place and that's one reason why Isis and poisonous groups like them will be beaten.
So many on here would echo Trump - we look after our own. Nothing wrong with that but his rider might as well be and fluck the rest of the world. A horrible destructive philosophy.
