I mean wouldn't those blue collar jobs get more and more saturated then if office jobs get less and less pay so people start moving to those? Personally I very much respect people who do those jobs, but I could never do them because of my disability so my only good choice is pretty much computer related jobs or then it's back to some sort of government benefits.

Perhaps, but only because most jobs done on computers today are by people who also have little if any math or programming ability. Change that and it's a different world to make those predictions in.