I think you might find that the migrant workers are hired and brought to this country for the harvest. I am not silly enough to think there are undocumented workers but shouldn't those who hire them be held accountable also for a possible multitude of crimes, tax evasion, hiring undocumented workers and the like. Also there is representation "Unions" there but do not know how successful they are. I see your point though, if we did not have migrant workers, legal or illegal in this country, and farms lost a butt load of money for a couple of years wages would take care of themselves. Not to worry those workers could surely find work in their own countries and we could go without fruits and vegetables. Brilliant!