FWIW, i grew up in a rural utah farming community (well, it was rural back then), and lots of the kids i went to grade school were mexican. some the children of migrant farm hands, some naturalized, some wetbacks... they were all well behaved, hard working, and as far as my brothers and i were concerned, just more kids to grow up with.
so okay, that was in the eisenhower (ozzie and harriet) days, you know, back before you locked the house doors and took the keys out of your car at night... yup, and way over west to the coast, there were orange trees in orange county, too. sigh.