I disagree...in the 20s and 30s, if you lived in the area of Philly that my grandparents lived, everybody spoke Russian...there was little need to learn English for the day to day grind...still all the kids learned English.
That stated, I agree with you, the Spanish kids should be taught English in the schools...that is a must. And I think the "official" language should be English, and that this should be codified (which, to my knowledge, it currently is not).
I think you made my point. Immigrants of yesterday were very different than the immigrant of today.
Although my ancestors came from Italy, I consider myself American 100%. I have never referred to Italy as "my country" . I am sure you have heard this phrase before and understand what I am saying. My allegiance is to the USA only, not Italy, not anyone or anywhere else. You know I am correct when I say the same cannot be said of many many of the newer immigrants.