Possibly? I'm honestly not sure. It might be that the difficulty of the journey is what caps the amount of people, not the ICE agents and threat of deportation, or that the number of people who see starting over in a new country where they have no rights and don't speak the language is not much larger than the number that already cross in. It is interesting that this guy had been deported 20 times--deportation may be nothing more than an inconvenience. That's why my suggestion is that, rather than a huge deportation crackdown, arrest people who commit crimes against others, throw them before a judge and put them in jail. That might do more to prevent this kind of crime than deporting them.