Baloney.
When I stopped growing produce on a large scale some 20 years ago, a good laborer could make $75-$100 a day. A good peach picker could double that easily. It was/is hard work, and if one can get $2500 of government benefits (in many cases, much more) tax free each month, one isn't likely to go to the field each day. There are some pretty good jobs being done by legal or illegal migrants, making pretty good money, that American workers could be doing if they were not on the dole. I speak from experience. The old saw about farmers replacing local labor with migrants because they would work cheaper is just a falsehood. Farmers brought the migrants in because the locals would not do the jobs that had to be done at any wage. Farmers in South Georgia were paying migrants to pull weeds out of peanuts $10-$12 per hour a year or two back.
You need to get your facts straight.
Just sayin' . . . .