You know, where I live (San Diego) each and every morning 60,000 of my (white) neighbors get in their cars and drive to Mexico every day to go to work.
Electronic factories line the Mexico side of the border. Mexico gives us "Green Cards" so we can go to work.
The people in the US never hear about that. Mexicans don't want to sleep in dirt ditches after working in a field all day. But if they go home for the night, they can't come back to work the next day.
I live in San Diego also, and I notice more the tens of thousands of Mexicans that come over the border to work each day at jobs that used to belong to Americans. Go to any construction job; you'll be hard-pressed to find anyone white doing any job.
From San Diego to where? Tijuana? I find that really hard to believe. Care to back it up?