You need to diferieniate refugees with Immigrants. Canada takes on average 10,000 refugees per year. This refugees get a work permit so they integrate into the labor market. On the other hand, Canada takes about 300,000 immigrants per year. These immigrants are professionals, entrepreneurs, tecnicians, graduated students and international skilled workers. They create more jobs and pay more in taxes that they take. They also are healthier and generally do not use welfare. In contrast, the USA immigration system punish international professional and foreign workers with long red tape. So most of the immigrants that come to USA are under family reunification. Canada get most of its immigrants under a point system to attract the best and brightest international candidates.