What makes Danish children productive is not their Danish blood, it's the culture and infrastructure that they operate in. The children of any nation would be equally capable.
As an immigrant myself, I find the second article silly. You import people according to your own criteria, and they arrive pre-raised and pre-educated. A larger proportion of them will leave the country before retirement age. It's a hell of a deal for a country, and that's why it's everyone's solution.
Immigrants are a much bigger drain on the country they are leaving.
A Dutch study found that non-western immigrants have a negative contribution even in the second generation: https://docs.iza.org/dp17569.
It’s not a “hell of a deal”—no European country is in the black from its investment in immigration. It’s a Dutch Tulip bubble. The Scandinavian countries, the most well-governed in Europe, have already done the math and started switching course.
As an immigrant myself, I find the second article silly. You import people according to your own criteria, and they arrive pre-raised and pre-educated. A larger proportion of them will leave the country before retirement age. It's a hell of a deal for a country, and that's why it's everyone's solution.
Immigrants are a much bigger drain on the country they are leaving.