Jane Galt takes on some of the more common anti-immigration talking points. Just for example:
5. There were ethnic newspapers, but nothing like today's ethnic media.
This is just ridiculous. Immigrants in 1900 could get all the
entertainment that was then available in their own language; for
example, by 1918, New York City boasted 20 Yiddish theaters.
The idea that Latin American immigrants are somehow uniquely unable to
assimilate because they can now watch soap operas and the Venezuelan
version of Eurovision in their very own language seems to me
self-evidently absurd; an immigrant at home watching television in
Spanish is immersed in her own culture no more thoroughly than was the
typical resident of an ethnic neighbourhood who shopped, worked, went
to services, and partied entirely with their compatriots.
I am working on some research right now -- immigration opponents are claiming that "yes, immigration may have been OK in the past, but its different now." I am in the process of putting together anti-immigration quotes from the late 19th and early 20th century that cover all of the same ground -- they're lazy, they breed too fast, they have disease, they don't integrate, they have divided loyalties -- but aimed at Irish and Italians.