Tech workers have only resisted unions because employment has mostly been easy to find in the industry (depending on location and sector). They also have an innate libertarian bent in the culture that would resist unions. But with all the company consolidation and layoffs, it’s hard to tech workers aren’t being taken advantage of in most places.

If I were to hazard a guess, I’d say that hardware costs being driven up dramatically has made it more difficult for their sponsors to provide infrastructure to the project for free.