I've always thought that was fascinating as well. You see the same dynamic in the U.S. where a huge amount of the population growth is from immigration or recentish immigrant families... without them either taxes go up, services have to be cut, but people think they're stealing jobs or destroying American culture. Maybe people just believe it's worth destroying our social systems to maintain the "culture" of the country but feels more like a knee jerk racist reaction by many without really understanding the huge benefit immigrants (especially skilled ones) bring to countries.