One of the great lies of the Collectivist Left is the pretense that people are basically creatures of their social environment. It works the other way around. People create social environments that reflect the unique characteristics of the people actually involved. The onslaught of immigrants from South of the border, has been, and will continue to change California in the direction of the cultures from which those immigrants came. California will not materially change the immigrants.
I am not suggesting that many will not adopt similar dress or learn English. They will not--with a few exceptions--suddenly adopt a societal view that draws inspiration from Magna Carta, or later from George Washington & Thomas Jefferson!
For a traditional Conservative view of immigration: Immigration & The American Future.
I have no animosity towards any people; but like Jefferson, I understand that peoples are not interchangeable. The idea that they are, may appeal to those who have a compulsive need to deny the qualities that make people unique; it is actually in no people's true interests. The fantasy, however, has been deliberately promoted since early in the last Century, by those who seek to build World Government--the ultimate human tyranny, that would surrender what better men won in 1776-1783.
God help us to better resist that betrayal.
The 1965 Immigration Act was a long term goal of JFK, it was a fulfillment of his personal dream to pass his immigration law after his death.