Oh; did I say illegal aliens?
I meant to say Very efficient machines.
Just a few generations ago, they were tended by a vast army of men on small machines, and now 1 fella in a HUGE machine can get the work done amazingly fast!
It didn't take as much 'schooling' back then to get the work done (yet the schools produced BETTER educated people!) so when the amount of field workers needed decreased, we sent the kids into 'higher' education. (Translation: take them OUT of the workforce for 4 years. Naturally, this required more support folks - teachers, administrators - whatever)
So NOW we have a vast army of 'educated' folks, coming back into the working world, with NOWHERE to use their 'education'!
What to do?
To me, it's a bit like the atom bomb. War-making ability advanced to the point of Hiroshima and Nagasaki and then then Great Powers sort of looked at each other and asked "Now what??"
If our technology gives us access to sustenance but takes away our ability or need to make a contribution, we have to ask ourselves "Now what??"
I see it as the big issue of the 21st century.