Fact: It’s not illegal for your boss to be unfair or a jerk. It’s unwise, but it’s not illegal. The exception to this: If your boss is being a jerk to you because of your race, gender, religion, or other protected class, then you do have legal options. But most jerky bosses act like jerks because that’s just the way they are, and that’s legal.
Myth: The First Amendment protects your ability to say what you want at work.