Addendum - a reality example:
In the smallish town near our rural home 2 automotive component plants closed in the last decade:
- One because of union intransigence - a strike in spite of a JIT contract, already making excellent pay ( >$70K/yr ) for routine NC machining engine parts.
- The second made custom automotive fasteners, very high volume, automated, but taken for granted by the locals. Anybody on the globe could do this and the plant was shut down, the contract off-shored to a lower cost jurisdiction.
Flipping hamburgers is now the local employment aspiration  .-(