I think your point that we compare like to like in education levels is a valid one (I also hold a similar opinion on Zerohedge, you didn't miss much on the actual article). I'd maintain that there is a vast landscape of tech jobs out there that don't require a 4 year degree, from sysadmins and support techs to hardware installation and maintenance. Military is a case in point, there are a large number of military operational specialties (MOSs for you military types) in the enlisted ranks that are entirely tech focused, the vast majority of which are filled by people straight out of high school, although many get degrees through night programs as their careers progress. This is where the majority of the new jobs over the last 20 years have been created and will be created going forward. I'd maintain that to decide that we have to contrast the loss of manufacturing jobs only with the growth of wait staff jobs is a strawman. I'd also maintain that it doesn't take privilege to get education. I came from solidly lower middle class and did fine, but I think the real example are all the enlisted men and women who served under me and got technical bachelor's degrees working at night and on weekends, while also working long weeks in demanding jobs that required them to up and move across the country every 2-4 years and to go on multi-month deployments every year. If large numbers of people in that situation can do it I'd maintain that it's widely achievable for those with much more stable lives and easier access to educational opportunity.What does engineering have to do with Manufacturing and Waiting? Engineering requires at least 4 years of rigorous schooling and often more in the form of a masters. Manufacturing requires a highschool diploma on the low end and trade school on the high end. Waiting is closer to manufacturing than manufacturing is to engineering and his point is that for that segment of the population Waiting is growning (which is considered a poor quality job) and manufacturing is not (which is considered a higher quality job).
Bringing the concept of high end engineers is a straw man argument to banjo's point. Why not mention anesthesiologists or Wall Street exotic derivatives traders (some of whom make 1000x more than a typical waiter)?
Further, given your background in the military (where you probably saw people from all walks of life) and then your background at an elite MBA program, I would figure you would appreciate the opportunities that some people are born into and few other people are capable of obtaining. The new aristocracy is education.
I don't like Zerohedge so I didn't read the article. I think the statistic highlights how hard it will be to bring manufacturing jobs back to this country (for some of the reasons you pointed out and some of the reasons I pointed out) but if it's doable, that would be more desirable than having a bunch of waiters working 15 hours a week to satisfy the needs of the 100 Apple engineers who designed the iphone.
Finally I'd also argue, having worked a summer job on an assembly line, that calling a manufacturing job "higher quality" is a bit of a stretch or at least highly relative. I admittedly haven't worked as a bar tender, but besides picking fruit (my previous year's summer job) factory work is right up there on the crappy jobs list.