If those with a work ethic weren't also the same people willing to break any law that impedes their desire to "just have a better life", then I might agree with you.
Besides, Mexico wouldn't take the looters and whiners. ;^)
I know that they should not be given temporary visas but honestly I would rather have a hard working illegal as a neighbor than the thugs of NO. I've live in the NO area and know that some of the things we saw happened before.
Perhaps we need to look at how the visas are alloted so at least we know who's here, if thorough background checks are done with temporary visas. Mexico isn't that stupid to take the thugs.