This is Economics 101, known to any student at my university. But Orchard doesn't seem to know it. In fact, when I challenged him, Orchard couldn't even state what the theory says. Apparently he would rather feed xenophobic sentiment than master basic economic principles. Like many demagogues, Orchard knows that the most reliable way to rouse a populace is to raise the spectre of the demon outsider.
Nationalism is sometimes a defensible sin.
But when it leads politicians to turn a blind eye to Milosevic's deportation and killing of thousands of innocent civilians in Kosovo, it becomes indefensible. David Orchard is playing a dangerous game.