I see it as a kind of misdirection, whether accidental or deliberate: Make the average person blame their malaise on the blend of industries, rather than their lack of bargaining power in the ones that exist.

Like all the nonsense about "bringing back coal" when the number of people working in it has been declining for a solid century for good reasons.

"If only we bring back buggy-whips, I'll be able to support a family like my pappy did."