Lots of great comments here. Am enjoying the thread.
There are two great destroyers of jobs in the US, off-shoring and automation. I would argue that off-shoring is largely driven by computerization and is simply a sub-set of the automation issue.
I'd agree with your first statement, but not the second. Off-shoring to china was not driven by computerization, but rather much cheaper labour. Sure, they have all kinds of advanced factories there (i.e. foxconn), but these were created because overall operational costs were cheaper there - most of which are comprised of labour. In other words, it was the cheap labour that allowed for the move and setup of the advanced computerized factories, not the other way around.
Due to bitcoin related research, I've recently learned that PCB (printed circuit board) manufacturing for medium to large volume sales all went to China. I thought it was a near fully automated robotic process, but it turns out (VIDEO) its actually still a very labour intensive process (look at all the humans!) despite a lot of processes having been automated in the past 2 decades. Much if it has to do with the sheer number of options in how it can be made (size, # of layers, types of holes/vias, material type for operational environment/temperature, type and quantity of metalic elements, countless finishing options, countless chemical baths along the way, etc) combined with human inspections required along the way for nearly every step, to say nothing that each robot/machine requires a human standing by to perform some task unique to that PCB - and that's just the bare PCB. The "assembly" of 'doo-dads' (i.e. capacitors, oscillators, chips, resistors, etc) onto the bare PCB is a whole other sector of the industry (VIDEO) with its own complexities and humans (look at all the humans!) required, despite also including massive amounts of automation.
According to this future projection graph which extrapolates a 17%/yr Chinese Wage growth, we get the following result:

At some point before the two lines touch, manufacturing will be offshored to the next cheapest country - Somewhere in Africa or other East Asian countr(ies)? I guess it depends on sector and what is being offshored - telemarketing? design? production? assembly? post-sales support? Either way, my point again is that the decline of many labour related jobs is not due to advancement in robots that can replace humans, but that cheaper 3rd world labour humans continue to replace 1st world humans:

Now, to play devil's advocate, my borrowed theory will break hard in the near (10-40 years?) future once we hit the theorized 'Technological Singularity' of AI. That is, not when machines find their ghost or acquire one, but when their synthetic intelligence achievable by not-yet-existent *real* quantum computers that provide it its immense processing power, allow a machine's 'brain' power to exceed not only that of a human, but that of all humans on Earth combined. At that point, the AI machine(s) create exponential advancements such that in a mere year or two (or less) we enter into a Star Trek Economics situation whereby technological advancements not only replace nearly all hard labour, but also consumption can be endless at no cost and every human is free to do as they wish with their entire live's worth of free time.... or all hell breaks loose!... As per the recent hollywood thriller:
Transcendence Official Trailer #1 (2014) - Johnny Depp Sci-Fi Movie HD
PS. I don't buy for 1 second the idea that consciousness can be transferred to a machine, that aside, the movie is not bad.
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