Re: Going after the problem from the wrong end
I will say that I remember INS busts back in the 90's making the local evening news, and the story was usually that INS had detained 3-5 illegal immigrants for deportation. Three to five? It's like they didn't even look through that factory of 300 workers, the vast majority of whom were immigrants, and most of them were of dubious immigration status. It was a lot of fluff, a bit of news coverage, but nothing fundamentally changed.
Arresting the factory owners is a good idea on paper, but their high-dollar lawyers will have none of it, and Congress would never go for it since they know the people (campaign contributors) who would be arrested.