This seems to be the work of drug runners so if your intent is to make this about illegal immigrants I think you are barking up the wrong tree. Maybe you could also take up your complaint to the American business community (especially in your own state) who do not really want to do anything about the illegal immigration. After all it forces down wages for U.S. citizens and they can pay the illegals they hire even less. I know someone very well who owns a large commercial flooring company in Dallas and he has told how things work down there. I am even seeing it this far north in the roofing and drywall business. Interestingly, we seem to be having an influx of Russians and others from that part of the world. So railing against the government is not going to do any good as they are just carrying out the bidding of their corporate masters. Despite all the noise the Repubs make about this issue they won't do anything effective about it either.
