I think it's entirely plausible for a tech worker's union to build public support around any number of popular causes, e.g. "want facebook to stop listening in

I think it's entirely plausible for a tech worker's union to build public support around any number of popular causes, e.g. "want facebook to stop listening in on your conversations? FB Local 404 did that for you" or "Sick of Instacart stealing your shoppers' tips? So is the Instacart Developers' Guild" and so on.