[mc32]

As a private person, you should be able to have viewpoints that differ from the company position. I'm free to think that drinking in excess is bad for society, even if I work for Pabst. I am free to believe that workers are free to seek unionization even if the company does not have nor wants unions. I probably won't be tolerated for agitating for unionization though. But I can opine on how I think unionization is good/(or bad if I work for pubic education)

What They are normally not tolerated for is for maligning the company, institution or organization. That one should keep to friends, family, trusted people, but not something you voice in a megaphone of a public forum.