If immigration isn’t opposed because of bogus economic reasons or bogus law and order reasons, then it’s opposed on the grounds of equally bogus cultural reasons. Excessive immigration is said to fundamentally change the culture of the destination region: Europe will turn into Eurabia, just like the Protestant U.S. were once believed to be on the verge of a Catholic takeover following Irish and Southern European immigration.
But even limited immigration will not save us given the supposed “high fertility rates” of immigrants:
That Muslims are grinding out babies ready to take over Europe is an outdated canard. The Eurabia authors worry about declining European fertility, but in fact the Muslim decline is much sharper. In 1970, women in Algeria and Tunisia averaged about seven children each. Now, according to the CIA World Factbook, they average fewer than 1.8. The French rate is almost exactly two. Parisian demographers Youssef Courbage and Emmanuel Todd demonstrate in their 2007 book “Le Rendez-vous des Civilisations” that after most men in a country become literate, eventually a majority of women becomes literate, and then fertility plunges. This demographic transition has now happened in most Muslim states. At last count Algerian women living in France averaged an estimated 2.57 children, or only slightly above the French rate. Moreover, the fertility rate of north African women in France has been falling since 1981. Eurabia is not a demographic prospect. …
The other problem with forecasting numbers of European Muslims in 2100 is the presumption that sixth-generation European Muslims will still be a foreign body here: Islam as a bacillus that even secular former Muslims carry around, forever dangerous. This ignores the transition affecting many nominal Muslims in France. …
Although here and there Muslims have made France a little more north African or Islamic, the influence seems to be more the other way: Muslim immigrants are being infected by Frenchness. (source)
Remember also that people in the 1960s were saying that the higher birthrates among Catholics would mean a swift “Catholic takeover” of Europe and the US:
In the United States the lower birth rate of the Anglo-Saxons has lessened their economic and political power; and the higher birth rate of Roman Catholic families suggest that by the year 2000 the Roman Catholic Church will be the dominant force in national as well as in municipal or state governments. A similar process is helping restore Catholicism in France, Switzerland, and Germany; the lands of Voltaire, Calvin, and Luther may soon return to the papal fold. (source)
Now, of course I’m not insensitive to the plight of culture. A national or regional culture is an important source of identity and wellbeing, and I believe the whole world gains when even a small culture is allowed to survive. I have an older post here lambasting the demographic aggression of China in Tibet. My point is not that immigration can never be a cultural problem, but that the size of the problem is systematically inflated, possibly as a cover for outright xenophobia. In this respect, the “problem” resembles the two other “problems” caused by immigration: more poverty and more crime.