Canada

Its somewhat to make money. But it also forgoes the cost of caring for and raising children. Canada likes it when people arrive with the cost of the first 18-30 years of life already paid by another community. Then we benefit from and exploit that. Often wasting advanced education as people enter the job market vastly overqualified for where they end up. (A situation which is often misrepresented to people considering a move here.)

As it stands, running universities and many other industries would be impossible without doing this massive brain drain on other communities. Because it would entail having a less shitty public education and social support system.

I am happy for immigrants to come here. I just find the parasitism of Canadian public policy really gross.