[s1artibartfast]

This supposes and outcome where domestic wages are increased and investment is made. It supposes that americans are willing and capable of doing the labor at a price point that americans will accept.

It is also possible we will simply not teach these children (or build infrastructure, grow labor intensive crop, ect).

[dani__german]

You're describing a market failure. That is a possibility with life. Our economic system worked during eras of very low immigration, namely the 1930s thru 1950s, and our education system was the best in the whole world.