First of all, that episode is just too funny.
For those that are worried that Mexicans or other foreigners will come and take our jobs, you have nothing to worry about. THERE ARE NO JOBS; see the government was even able to solve that pesky problem. Check the link below:
The main reason people want to come to the USA is because of freedom and opportunity. But as we have slowly but surely picked away at our freedoms and opportunity is scarce, many foreigners look to other locations.
There is no doubt that many foreigners come and leach off the system, but then again I don't see any difference when a foreigner does it and a national does it. Do you?!?