From a UK perspective (which I can tell you more about than various things that furriners experienced[1]) some could point out various General Strikes we have had, and over the last century+, and particularly the miners' strikes (with varying amount of general support) most recently the '80s one.
Some might say they are a cure worse than the disease, although, under Thatcher, her cure for "the cure that was worse than the disease" led onto it being worserer still for many, and it's hard to know whether their fighting and losing made it so or if passively accepting to start with would have led to the same disregard/hostility towards their communities. (From a hindsight perspective, and Maggie
did apparently have foresight in various environmental issues slightly ahead of the game, but that doesn't absolve her of engendering our very own Rust Belts (or Muckstack Belts) by slash-and-burn tactics against various heavy industries and producers, the signs of which still exist to this day, albeit occasionally punctuated by new-growth hilly parkland, retail parks, warehousing metrpoliseses and - recently - wind-turbine 'forests'.)
Of course, mining
is a skilled profession (or, more definitely, not one you could 'temp' in with no experience - you need to have commitment, even if that's just "wha' mi fa'þa did, an' wha' 'is fa'þa di' afore 'im...") and their coal (and the dockworkers unloading capabilities, and the bin-men's collections and the gravediggers'/crematoriators' various services...) was, at that time at least, absolutely required further down the chain. A problem largely solved by also shutting down the steelworks, etc, and heavily tapping into oil/gas for most fuel/generation needs, buoyed upon the North Sea bubble but later on making the Middle East even more of an interest than the time when Churchill converted the RN away from solid-fuel (as Leading Seaman "Taffy" Goldstein
would oft refer to) for ultimately tacticly successful reasons.
What we have in this Instacart situation (though I had not heard of the business, prior to this particular thread subject-shift) seems to me something of a McStrike situation, which I don't
think did much good at all. No doubt there are sympathies, but I couldn't see this being taken up as a larger effort, or become a socially phase-changing event like the (failed, at its main objective)
Grunwick pickets. At 'best' it's going to be more like the
British Leyland debacle that asserts the power of the (probably rightly agrieved) workers to make the business (but not the 'industry') untenable.
But how it works in 2020s US is hard to relate in any way to the situation in the UK any number of decades ago. Politics, society, business and technology are
all rather different (probably all having 'learnt' from earlier times and worldwide events, to the betterment or otherwise of various current agendas). Perhaps the successor to a picket-line (in that weird "always moving" form I understand your laws require) is a Social Media blitz of some kind, but the magic of how to project this power for the benefit of those who need it (laser-guided, but non-destructive, upon their foe) without drawing in 'supporting' disruptors that are just in it for the wider disruption and their own personal gain (rival companies, foreign governments, unaffiliated trolls-for-the-lols) is yet to be established.
[1] Mostly there's the French, comes to our notice. When their Air Traffic Control disrupts the plans of our air-travelling sun-seekers. When their farmers blockade their Channel/Sleeve ports to disrupt our farmers but also our ferry-travelling booze-cruisers. Every now and then it seems that their students become the new communardes, etc.