Ben Sixsmith on “open borders” posturing:

But what of the proposed merits of open borders? A consistent failure of the Economist’s article is a reluctance to distinguish between different migrants. If one finds the study, it turns out that 54% of the men and women who expressed a desire to migrate came from Africa and the Middle East — with another 20% being from Central America. Yet the most successful immigrants, in terms of launching businesses and earning wealth, have been found to hail from Asia and Europe. A UCL study found that European immigrants to Britain contribute more to the economy than they take from it, while the opposite is true for non-European immigrants. It is senseless, then, to claim, as the author of the Economist article does, that immigrants are “more likely than the native-born to bring new ideas and start their own businesses.” Immigrants do not come from “Immigrantland.” Population differences related to entrepreneurial and earning potential are real, and significant, and difficult to bridge. 

Worth reading in full, I think.