Contrary to what conservatives will say, there are only TWO things about this country that have been the same since the beginning, have been constants in American society.

One is change. This country has been changing ever since Europeans came here (and in fact well before that too).

In New York people spoke Dutch, and there are quite a few towns left with Dutch names. The foods have changed. The environment has changed (American Chestnuts made up the bulk of all eastern forests and were THE major foodstuff until the early 1800s. Now gone.)
Demographically we have been in constant flux.

The other thing that is a constant is that ever since the beginning the children of immigrants have been complaining about newer immigrants.

Protestant Irish detested Catholic Irish in the 1830s and thought the country was going to hell. The Dutch probably hated the English and Protestant Irish.

Asians, then Italians, then Eastern Europeans... all arrived and were detested and discriminated against and pilloried in editorial cartoons, and then when their children were able to they passed along the "favor" to the newer arrivals.

Which is why right now in Buffalo and Chicago and other cities you have the children and grandchildren of Polish immigrants complaining about "Mexicans*" (which means anyone who speaks Spanish even if they're from Peru.) Complaining about bilingual government paperwork, etc.

Meanwhile they go home, Babcia or YiaYia still speak Polish or Greek, of the dozens of non-English newspapers each city in the country had in 1900 some still survive (the AmPol Eagle) etc... but that doesn't count.

That's merely "celebrating our heritage" and although they are members of fraternals like the Polish Union of America and eat Polish food and attend festivals and read papers in the language, when "Mexicans" do that it's because they just refuse to assimilate.

Racism. As American as apple pie. Built the Washington Monument and the US Capital Building.
Now builds our iPads.

Hooray for the USA.