IMHO, the influx of immigration did not improve the area over the years. It increased crime, neighborhood blight, and the building boom used every square inch of open land.
The "we are taking over" mentality is very prevalent here. It really illustrates the reason Miami has declined. I really don't understand that kind of comment because Miami and Cuba before Castro were close neighbors. Hispanics were always a part of South Florida.
The difference now is that most are too lazy or ignorant to speak English. I speak some spanish and I have dated some fine Cuban, Mexican, Colombian, and Panamanian women in my 20-30's...in the 70's and 80's...and they all spoke perfect English as well as Spanish. I was accepted into their families and sat at their dinner tables.
As a kid, we could drive to the beach and park on the sand, now you are lucky to get a glimpse of the ocean between condo towers...
It is not the same. The beauty is for the most part gone, and the arrogant attitude "calling everyone a racist who disagrees" is not isolated to few.