Many tell us what to think. I ask my readers to be skeptical. Question me and others. 
If today we grant green cards to all illegal immigrants, surprisingly many would pack up and return home. They would do this knowing that when the economy improves, they would have the freedom to come back. Staying here is not such a value as the freedom of doing so.
Formalizing the alien worker status is the key. Not all people allowed to work here will stay permanently. Returning to their countries, they will be the best ambassadors America can have. For example, allowing this free labor traffic with Latin America would result with many Latinos having seed capital to start their businesses there. Even more, it would inject into their, often corrupt, political system millions of influential people familiar with freedoms we have in the U.S., and forming grass root demands for system changes there.
