Again, this 'jobs that Americans won't do' business is a myth.

You put enough money on the job, any job, and Americans will line up to do it.

What they should really say isn't that Americans won't do it, they should say "that Americans won't do it for the price that's being offered".

You offer somebody 50K to haul garbage or dig ditches all day, and more impotantly cut off welfare, you'd be shocked by how willing Americans are to do these jobs. Importing Latins to do these jobs simply holds the cost of labor artificially low, end of story.