The “culture clash” argument is an important argument, or rather
cluster of arguments, offered against immigration. There are two
different versions of the argument. Some people make only one
version of the argument, some make the other, and some make
both: - The culture of immigrants is objectively inferior to the
culture of natives, and/or is objectively harmful in some
important respects. Immigrants would thus sully the culture of
natives as well. For more on this, see dysfunctional immigrant
culture. - Cultural heterogeneity itself is an undesirable thing
because of its effects on national unity, civic and social
participation, economic growth, and peace. It creates
assimilation problems for the immigrants. This page focuses on
the cultural heterogeneity aspect. For instance, in his book
Alien Nation: Common Sense about America’s Immigration Disaster
(available here), Peter Brimelow writes: Over three years after
I first met Julian Simon, I was having dinner with him to debate
our differences. We got on t