The fact that it will affect me either way is kind of my point in saying this is not just IF Metall vs Tesla. I consider a union win to be the best outcome here.
And for that reason it is the most likely outcome too. 'When in Rome...' Tesla has a lot to lose here: Norway, Sweden and to a lesser extent Denmark and Finland are early adopters and Tesla has large market share there. If they turn those countries against them it will have repercussions all over Europe. I'm in NL and have already heard people mention this conflict here and how it affects their view of Tesla as a brand and I think that's not unique.
Pick your battles and all that.