My wife, from Santa Clara and whose schools were integrated, points out many had families living in the area long before it was U.S. territory and those folks have family throughout Mexico.     

You don't want to see or know why those folks come here.  What  you believe is classic narrow stereotyping that helps define racism.   That may surprise you, unless you want people to believe Hispanics are an inferior race?

If not, then think of a few good reasons why a honest man would risk death to come here for work.   

We'd probably find stuff we agree on  - always a good thing!!

P.S.   I believe all immigrants should have documented permission to be inside our borders.