On Free Immigration and Forced Integration

Professor Hans-Hermann Hoppe reports:

because of the existence of a welfare state, immigration has become to a significant extent the immigration of welfare-bums, who, even if the United States, for instance, is below her optimal population point, do not increase but rather decrease average living standards. For this is not an argument against immigration but against the welfare state. To be sure, the welfare state should be destroyed, root and branch. However, in any case the problems of immigration and welfare are analytically distinct problems, and they must be treated accordingly.

An article well worth your time.