Really, the only place I see this happening is the CS/SE field. It’s easy to outsource, as you don’t actually have to be physically *there* to do your job, and since most CS/SE’s are terrible at explaining what they’re doing anyway, it’s not exactly a loss to hire someone who’s still getting acquainted with the English language.
As far as other types of engineering go, there’s still a preference for Americans, or at least people who have lived in the US long enough to have a green card. A lot of manufacturing companies have their testing on-site in the US, and those jobs really can’t be exported, as it’s easier to monitor exactly what’s going on when it’s right under your nose. Also, you’re still going to need someone who can explain how the stupid thing works... in English.
Is your loyalty higher to your employer or to your nation? Are you an American or someone without a country? You are changing America in the direction of becoming a third world country, for a few pieces of silver. I don't understand the "citizen of the world" new tradition, why it caught on so fast and went so far. It's completely against human nature to sell out your own tribe. Most people that would have done this should have been killed off or ejected from their tribe long ago.
You'd think America would have learned a lesson by now: It's better long term to invent an automatic cotton gin or lettuce picker than it is to import cheap immigrant labor.