A union for tech workers in the US is now a year old. Aside from generating HN discussions I don't believe they've accomplished anything. Commentators point out that maybe being a vehicle of social justice style progressivism deters union membership, that was obviously "incorrect".

The whole thread is a rather comical example of how some people try to get others to support political views they do not hold. Ahem, "the personal is political", "not speaking up is supporting the status quo", etc.