Urban California is liberal. Small town California is conservative, but only because its illegal alien community is either too illiterate or has not yet screwed up the courage to vote.
What about the aliens with papers? Have the "legal" Mexicans in small town California become Conservative and pro-America or do they remain liberal and favor entitlements?
My direct experience is limited to Bakersfield in central California. My perception was that a good proportion of those of Mexican heritage did assimilate and take on American values. Most of them were nice to me and smiled when I said howdy.
On the other hand, the Mexican descendants in Los Angeles seemed to have a constant chip on their shoulder. Most of them sneered and seemed to be rather hostile.