> But how do you actually bootstrap that process?

I don't know.

> Look at bandcamp. They unionized successfully. Then the company got sold (again), and everyone but the union leaders (and prominent members) got job offers from the new parent company. Basically got reverse-fired.

That seems like something that should be illegal, if it's not already. It seems like a paper maneuver.

It should probably be expected that employers will play dirty, which is one of the reasons why I think the unions need to be hyper-focused on worker and workplace issues to the exclusion of all else.