There is nothing remotely like "union busting" alleged in that article (which is quite good, and largely supports my belief that this is an unreasonable escalation by Swedish labor; so much so that I maybe question if you actually read it?).
I linked to it because I thought you may not be familiar with this dispute.
I'm puzzled. Do you think when he flew in workers from other countries that this was not a strikebreaking tactic or are you saying that this did not happen?
Unreasonable may be in the eye of the beholder. It is however completely expected. If anything, they waited much longer than usual.
This is pretty much a school book example how labor conflicts go.
The next steps of the conflict are also expected and known well in advance. The only problem is that nobody seems to be willing to inform their higher ups at Tesla what is happening.