It isn’t itinerant farm labor jobs that is the problem.
It is the janitorial, meat packing, chicken-flicking, construction, ship yard, fence building, fast food & restaurant, hospital/hospitality ancillary, and other sector jobs that are being taken over by the invading hordes.
These people don’t want Americans to remember the huge lines of unemployed Americn applicants at several sites, in multiple states, after immigration raids under GWB.
The problem is...you can't keep them down on the farm. They will do the farm jobs year 1, but come year 2 they will be doing manual labor on a construction site.
Then, more illegals will come...to do the "jobs that Americans won't do."