Allow more immigrants to acquire Green Cards!

As of today, more and more immigrants are coming into the Americas illegally because they couldn't get a Green Card. Also, this would be an economical benefit because more people would be working and more money would be flowing throughout the country. Many new cultures could be introduced or even preserved because of this. The newcomers may find some of their own peoples and continue the practice of their different culture. As you see, there are many different benefits this move by America could make. As though there are benefits, there are down sides as well... there may be less jobs available for the local population that already existed before the incoming of these immigrants. Maybe they could give out more but not all at once to control the situation.