One of the things that liberal groups, unions included, have been good at is creating a narrative and selling that to the media. A case in point is the current United Auto Workers strike, which is being presented by the union as involving a bold new strategy of targeted walkouts. Don’t believe the hype. This is a case of the union lacking the resolve to do more.
Historically, labor strikes have been all-or-nothing propositions. The unions seek to shut down production and other business activity entirely. Without inflicting the maximum amount of pain on management, the union has little hope of gaining any concessions. This is why unions have always stressed the importance of solidarity to the cause. It’s why unions have always held that crossing the picket line is a betrayal of the workers.