Tesla is not special, but letting it build infrastructure and start business there with certain assumptions, which are entirely reasonable (there's no MANDATE in Sweden to unionize workers) and then suddenly IF Metall pulls workers to orchestrate a strike which forces Tesla into losses, is not exactly an honorable practice.
Just recently a judge in Sweden itself ruled that withholding license plates from Tesla was 100% illegal. The post is not delivering their mail. This is quite bizarre. And what do you think will employees gain here? They'll be paying union fees, and get a raise equivalent to the unions fees they pay. Tesla's pay in Sweden is not below industry average but ABOVE industry average. Meaning IF Metall didn't improve things at all in all other companies they have unionized.
Keep in mind the employees have little say here. They're threatened that if they don't comply, they'll never be able to find another job in this industry, which is largely controlled by IF Metal. So just like Tesla has the choice of "do business with IF Metall or leave Sweden" the employees are also told "do business with IF Metall or leave Sweden".
Let's not pretend like the union are the "good guys" here. Tesla is a big player globally, but locally in Sweden IF Metall are the big player, and they're leveraging this to gain power through any means possible.
Europe has given us many good things, but overall there's a reason why businesses here stagnate and there's no growth. A huge union abuses power the same like a huge corporation abuses power. There's no distinction here. The problem is the size. You don't want players to be too small (i.e. individual workers negotiating with a gigantic corporation) but you also don't want all corporations negotiating with one monopolistic "my way or the highway" union.
When either side in this transaction feels like they HAVE NO CHOICE, whether employee or employer, then the model is broken.
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And also you may consider my perspective to be tinted by Tesla and Elon Musk fandom, despite my best attempt to express myself neutrally. But I actually cheered for IF Metal when I heard about this story initially, as I know Musk has been treating his employees like disposable resources in both Tesla and SpaceX at times. He's not a good manager. And I am no fan of his ventures. But looking closer at IF Metall, I've changed my mind on the Sweden situation specifically.