Miami is a good example of this. Miami has prospered from Latin waves but some Anglos get aggravated at starting to feel like strangers in their own land. So, they all moved to Broward. Now they are all moving yet again. It's a cycle. Such is life.
The Old Florida Crackers complained when the Yankees from New York came to Miami. They, in turn, complained when the Cuban middle class moved en masse to Miami in the early 1960's. The first wave Cubans complained when the "Marielitos" showed up in Miami in 1980 and now the "Marielitos" are complaining about the "Indios" from Central America that are showing up in Miami.
Oh, I forgot. The Seminoles complained when the Old Florida Crackers showed up.
Nothing like 20 years and a bunch of newcomers to make a group "Old American". :-)
But, all kidding aside, no "Old American" or "Recent American" should have to put up with anybody who is not legal.
I maintained a residence in Miami from 1988 till the mid 90s. First on Brickell and then to the Gables and then to South Miami as my family grew. I speak Spanish and Portugese relatively fluent (or used to) so the cultural thingie never bothered me much but in all fairness now matter how much I like Cubans or Colombians or Brasilians etc (quite a bit), I can see how old timey Florida folks whether Southron or Yankee would resent becoming cultural strangers in their hometown. That's a long ago fait accompli now anyhow isn't it?
I had a next door neighbor on Sorolla off of Granada ave in the Gables who had been there since the 40s and still called it My-Am-Uh....lol.....she felt isolated...sadly.
Miami is the real capital of the Latin American Basin for sure.