Previous threads we've done: https://news.ycombinator.com/submitted?id=proberts.
If it's true people are crossing our borders, claiming asylum, and being let go with work permits, why should anyone do wait to do it the legal way and wait or get denied?
What is the advantage to doing it the normal way?
If you have the ability to immigrate on a visa, it's much safer and easier than relying on "coyotes" or having to cross multiple borders illegally just to take a shot at entering the US.
There's a reason you don't see Mexicans cross the border illegally anymore.