B, c'mon already-already, the world (according to man) obviously hasn't stood still, in fact, industrial technology has grown at an accelerated pace that's almost exponential since the 'buggy-whip' days. We've been over this before, but here we go again...

Buggy whip/horse carriage/bridle--etc. mfg's all either either tailored their biz model and products to the emerging horseless carriage industry, or they perished--that was then. Back then, these producers became the satellite industries surrounding the central hub of car mfg's, supplying them with individual components used to build cars. We saw the same process for clocks, pianos, radios, appliances, etc.--but that was then.

Now, we have the so-called hi-tech industry with it's similar hub n' spoke system, but the satellites are disappearing far sooner than their earlier bretheren, and they're not being replaced with anything other than stripmalls and burger franchises. There doesn't appear to be emergent industry that'll backfill all the lost jobs we're bleeding overseas, thus I believe this is an unsustainable trend.

It's the same, only it's different. We have no historical parallel to what's happening right now.