Unions are adversarial organizations designed to balance an existing structure that can't be easily removed, but this is about "if you were inventing a new kind of organization that didn't need an adversarial structure, what's the best way to do so?" and you can do much better than management-vs-union there.
Not an expert, but my understanding is that German unions are collaborative with management and not adversarial. Not common, but it would disprove the direct link and make it more of a strong correlation.
Happy to be shown how my understanding of the German system isn’t correct.
You're probably right, but much of HN tends to take a very US (or even very silicon valley centric) view of things. In the US the narrative (and maybe the truth too, idk) has been set up of Company vs Union. I suspect it's been made polarized so that the 2 party system can take advantage of what side they're on.
Commonly known as a (Tech) union?