Comparing upper and middle class Latin American immigrants to impoverished Mexicans is like comparing apples and oranges.
Besides most of those "Cubans" you despise speak English. As a matter of fact, the second generation communicates predominantly in English, only speaking Spanish with their parents.
Miami-Dade County is the business capital of Latin America. I think its all the better for it.
The same thing is happening here --- and it's not just whites complaining --- many hispanic kids hate the foreign music --- they like rock and other American music if they're American --- many kids say they will leave town when they can --- and very many do just that. It's becoming just like Mexico with a lot of migration out going on --- and the only ones coming in are from Mexico.