The point of solidarity strikes is that there may not be a specific point. It's simply a way for workers from unrelated industries to show support. Apparently, even trash collectors and mail delivery personnel are skipping Tesla.

Because if Tesla prevails in not having a collective bargaining agreement, then it opens the door to all companies doing the same thing and potentially destroys all unions as they are now.

Precisely. This is an existential battle for them so they cannot back off.

IIRC, Tesla is refusing to negotiate with an auto workers union in Sweden for a collective bargaining agreement.

The other unions are targeting strikes in solidarity.

Yes, it's legal, and standard.

* standard but rare. This really escalated after Tesla brought in strikebreakers and threatened the Swedish labour model which is built by Unions and not the government

> the Swedish labour model which is built by Unions and not the government

That's not exactly true. It's a partnership between the government, the unions, and the employers with the government usually taking the role of mediator.

"The Swedish model & collective agreements – a brief introduction

The Swedish labour market model in a nutshell

In the Swedish labour market model, the social partners (trade unions and employers’ organisations) are responsible for wage formation. The social partners also have a key role in establishing other employment conditions in the labour market.

The legislation constitutes a framework that supports this model, for instance, through provisions on association and negotiation rights and the right to take industrial action. The social partners have significant autonomy to regulate the precise conditions through collective agreements. Many statutory regulations can be replaced with collective agreements. There is no legislation on minimum wages or universal application of agreements.

Another key feature of the Swedish model is that disputes are resolved in the first instance through negotiation. A prerequisite for the model is that collective agreements cover most of the employees on the labour market"

https://www.mi.se/app/uploads/the-swedish-model-and-collecti...

https://www.mi.se/english/about-us/

I still feel that text makes it clear the actual working conditions & rights etc are built up by the unions and not the governments?

Fwiw I live in Sweden and am a member of its largest Union

It wouldn't be possible for unions to do it without the supporting framework provide by legislation.

That's just plain wrong. The model was created to avoid legislation and existed before any later legislation was written around it

Their specific issue seems to be elmu's anti-union stance. May be a different union, but that's what solidarity is. So possibly their specific reason is solidarity.