But they aren't. Also unions can't push these sympathy strikes too far, by doing targeted denial of government services they are really making it easy for the current right wing government in Sweden to add regulations to prevent unions from denying government services via sympathy strikes in the future. There are already such laws for healthcare etc.
They aren't because the situation doesn't require it yet? If the rules/regulations regarding delivery of plates changes union action will change to address that. If the government does something to curb union power (in a non life and death situation) they'll likely lose the next election.
> If the government does something to curb union power (in a non life and death situation) they'll likely lose the next election.
No they wont, if they do something like: "Sympathy strikes is not a valid reason to refuse to deliver mail" nobody who currently votes right will think that is bad. Post workers can then still strike for better conditions for themselves, but they can't shut down the postal system for companies they don't like.
Mail is necessary for many government functions, it isn't some optional thing that you can work around.
Edit: Seems like the courts agrees that this is a necessary function so they have to give them to Tesla via alternate means:
> According to the Transport Agency, current regulations mean it is only able to distribute number plates using Postnord.