My friend Victor is here illegally. He walked about 120 miles across the West Texas desert to get here, when he was thirteen years old. He worked on ranches for a while, but has been working at a dairy for years now, mostly as the caretaker for new calves. Twelve hour days, six day weeks. He gets reasonable pay and lodging, but forfeits all of the withheld taxes, 'cuz if La Migra finds him, it costs him $3000 to get the Coyote to sneak him back in. His mother way down deep in Mexico has a running car and a pretty nice house because of the money he wires home. He's never been in legal trouble, other than La Migra. He is allowed all the flies he could ever want to eat as a side benefit of working there.
He's a big part of the reason that we're not paying $7.00 a gallon for milk.
He and his compadres are a big reason that this part of the world is still liveable.