Maybe. On the other hand the Teamster’s links to organized crime (and general corruption) would seem to indicate unions can become just as malignant. Additionally there have been situations in the past where the union was responsible for the company going under.

Like I said, the weakness in this argument is it presumes that forming a union is strictly better. Maybe it is in this case. Maybe it’s not. Muzzling any speech to the contrary isn’t great though. Both sides should be able to be full throated advocates of their position as long as they do so fairly and within the limits of the law.