Perhaps? But everyone I've spoken to have been pretty vocal about it, although more along the lines of "Musk is a tool"

Tesla is a good opponent. Musk is generally despised. Electric vehicles are seen as fancy-pants toys for eco-freaks. So the usual people who come to the defense of big companies don't really feel the need to break a lance for Tesla.

This is specifically the case with the Sweden Democrats. A big motivator for them is a) bashing greens, and b) being a better alternative for the working class than the Social Democrats. Siding with a foreign billionaire over "salt-of-the-earth" workers is not a winning move.

I'm sure there are. To be frank, that matters little. All large employers are part of an employer's union. They don't see things differently. They all need this particular contract law intact.

Vocal or not, no one will not be able to affect this semi-voluntary system unless they control bascially the entire economy. This is unlikely to ever be the case, until maybe some supranational EU agreement changes the rules entirely.