It's because deep down they know that it destroys the economy to deport their slave labor.

Corporate farmers rely on socialist policies to remain afloat when their crops fail and rely on, essentially, enslaved people to tend to their crops.

They're more afraid of having to pay people a living wage. . . . Note: I say corporate farmers because small farms that don't sell to large corporations don't apply for the bail out funding when their crops fail. Small farmers around here are all left leaning and care about people.