No one ever talks about the brain drain that legal immigration causes in countries of origin. Africa and India and everywhere else could seriously use the human capital of their most highly skilled emigrants.
This is one of the many reasons morality-claims for an open society are bad and dumb. Primary beneficiary of mass immigration = the immigrant, his personal boon is primarily economic, and a lot of other people suffer in a lot of other ways when his liberal individualist choice happens at scale.
كن أول من يرد على هذه سؤال .