[joshuamorton]

A company is, last I checked, free to reject the union entirely and fire everyone (if they strike).

Not to mention your argument should be that cartels should be legal, not that unions should not be.

[missedthecue]

You may want to check again. A company cannot refuse to bargain with the union, and strikers cannot be fired while on strike.

[joshuamorton]

They can however be replaced, in which case the company doesn't need to rehire the striking workers. Potato/potato.

That's not true if the company is in violation of an existing contract though, then the company is breaking the law and must rehire everyone, but I'll reiterate: they're breaking the law to begin with.