I am from the Bronx. Even in the "Italian-American" area, very very few people speak Italian.
However, I cannot say the same of almost every other part of the Bronx where English is like a fourth language. This is hardly a good thing.
Believe me...the Italian neighborhoods were not speaking mostly English in the 20s and 30s...give the hispancis a couple generations...they'll speak English...it happens every time.