As long as the guest workers sign up from within their home countries, I would have no problem with the general concept of a guest worker program. Also, give people from all countries around the world (excluding our enemies) the same opportunity to sign up as a guest worker.
You worship the law. The law is the highest authority in you life, more important than your God, your family, your country, even your own self.
It doesn't make any difference which law or what it says, you support all laws for no other reason than "it's the law."
That wouldn't be much of a problem for those from Mexico, but what about those from China or North Korea? Aren't half the illegals in California Asians? Doesn't that give the Mexicans an unfair advantage? Don't you think the Mexicans will have to replace the Asians who can't go home to apply?