The last brew ha ha with Trump is of course his comments about Haiti. Furthermore, he doesn't seem to understand why we can't get more immigrants from the Nordic countries. The truth is Haiti is a "shit hole" and as "shit holes" go people would love to be able to leave and go to another place far less of a "shit hole." On the other hand Nordic people (and others from well developed countries such as NZ and Australia) generally have a better standard of living than Americans. Other than the weather, not much motivation to want to uproot your entire existence and move to a country with different cultures or language (albeit most Nordics are fluent in English).
Since mass immigration started in the late 19th century its been mostly people from "shit hole" areas that wanted to come to the United States. And since for so many years the US was the queen jewel of the world you get the picture. First it was Europe, now its Central and South America.
So this brings me to my Mother. She was the daughter of two uneducated Italian immigrants (she actually conceived post exit for the US). Italian was spoken in the house, they ate Italian food and celebrated Italian culture. She grew up in a coal mining town full of Italian immigrants. Half the town were her distant cousins.
Then she gets a scholarship, moves away and discovers "America." These people don't speak Italian and eat hamburgers not linguini. Suddenly she's in culture shock and its the late 40s/early 50s so she must adjust, and fast. As a young woman she totally immerses herself in the American culture and spirit. She joins every civic organization, she votes in every election, she reads the newspaper faithfully each day. She is at times embarrassed to let the world know she is the daughter of someone that can only speak broken English. As a kid one time on a school field trip I let on that my grandmother couldn't speak English. That night my mother was more livid that I've ever seen her.
The truth is that it wasn't until her mid life that she felt a real " full American" and a legit as a true citizen.
Now that brings me to modern day. Starting in the 1970s immigration shifted to southern regions. In my grandparents time it was understood that children and then particularly grandchildren would lose ethnic identity ultimately becoming totally American. Like me, my background was an interesting oddity but never did I think "well maybe I don't belong in this country/" With the Latin migration the "cultural shift" has been much slower. Subsequent generations have held onto their culture and language. Its why we see signs in English and Spanish and get the option to "presione el numero dos" when we call a customer service line. Live in a city like Miami and in certain areas its hard to find a English speaker.
While there has been a retarding of the cultural conversion, it without a doubt is now occurring with the newest generation. Teenagers and young adults identify more with the American culture than that of their grandparents or parents home land. While they still speak Spanish when at home when they are out together with peers its English only. Their into football not soccer and listen to American bands not their native Samba. Sure they still find their culture amusing but a trip to Disneyland is much more appealing than a trip back to the motherland.
Despite the immigration fearmongering, immigrant trends both legal and illegal are changing. Stricter border controls (which started under Obama), fewer job opportunities (as automation takes away low level jobs and employers use E Verify), and what has become a more hostile environment to immigrants is slowing movement. Mexico has net negative immigration.
The more problematic part of immigration, which is rarely talked about is the abuse of HB1 Visas, which typically are young people from Asia being used for cheaper professional work. $40K a year in the US (living 4 to an apartment) is better than what is $5K a year in India and China. And for some reason Trump doesn't seem to be calling India or China a "shithole" and we don't seem to want to run those nice hardworking polite Asian immigrants out of town.
Finally, as newer generations come along and assuming new immigration continues on the same trend the Latin cultural influence will fade to the point of what we now have with Europe. Eventually they will be just like me. Heard the language when growing up but never really taught it and only a mild interest in my ethnic heritage.
As far as Donald Trump, he doesn't seem to understand the forces and motivation of immigration. Middle class and Upper Middle Class people from developed nations will come on vacation to see Broadway, Disney and the beaches but to live here? Other than the rich setting up a second home and dual citizenship, its not gonna happen.