The thing is since our government doesn't enforce our laws, they're prodominately moving to the construction industry (because of the pay). So while I think the elimination of labor through technology is a good thing in my mind, they'll flood the jobs that many Americans can and definitely want to do.
Push is going to come to shove pretty quickly in the construction industry. Even if the housing bubble doesn't burst (and I think it will, big time this year) higher interest rates will definately slow construction, and out of work Americans are going to covet those jobs the illegals have been taking.