OK. What if a company wants to close a plant, because it's not profitable enough? It's also an organized (corporate) action, so it must be disallowed?
Have the workers looted Tesla's plants? Are they burning down Tesla cars in transit?
No?
Then fuck off. Workers are simply negotiating for a fair price for THEIR private property - the labor services that they provide.
And why is that bad? You've just described a negotiation between two private parties. In any negotiation, parties try to get their counterparty to do something with their property.
Workers are negotiating with the company about the sale of private property that they possess (aka "labor services"). Of course, workers can also organize together, it's simply an exercise in free speech.
Heck, it's as libertarian as it can be.