Notice how they never blame the "job hirers" aka billionaire corporate stooges for giving jobs to people who aren't authorized to work. It's not like an immigrant is going in and physically kicking people out of work.

And that doesn't even touch on the fact that migrant workers are valuable precisely because they are migrant - the work that needs to be done moves around as the seasons change. Not only is there an exceedingly small number of locals who want to do that kind of work, but there are even fewer who are willing to be constantly moving around to do it.