Interesting to think about. Here in Hillsboro (Hillsburrito), we have a large number of Mexican nationals living and working the farms and fields nearby. You see them everywhere. The short Mexican women with their strollers, pushing their anchor babies up and down the sidewalks. The school classrooms full of ESL kids who are slowing down everything for everyone else. The emergency rooms full of indigent Mexicans who can't pay their bills. On the other hand, I do think a hell of of lot of businesses would be hurt by their absence were they all to be deported. Also, who would harvest the crops? Would Americans go back to doing this hard labor for little pay?