The option of calling the Feds isn't that helpful to an immigrant worker with very little English whose last encounter with law enforcement was being returned to their farm in a squad car with accompanying warnings though. When most people's concerns about immigrants begins and ends with the question of "but they're not going to overstay their visa or take jobs away from local people are they?" and there aren't many people around anyway it's not like they're inundated with options. Journalists don't pop by every day.
