Immigrants are not automatic small-government conservatives. They come from paternalistic, quasi-socialist countries. Once they get here, they vote for the party that offers the most benefits. Guess who that is?
First-generation immigrants work hard — both parents around the clock. But their kids are left alone to grow up in a morally polluted and liberal culture, join gangs, and have babies out of wedlock.
The prescription for a permanent Demo-socialist majority.
Certainly largely true for Mexicans, who are the bulk of the illegals in question. They are accustomed to a one party autocratic state.