The text reads: "Congress shall make no law ... abridging the freedom of speech, or of the press ... "
It's actually not that cut and dried--you can't threaten people (especially important people). But the government can't arrest you for disagreeing with a law, policy or regulation; saying what you think of any or all religions; or sharing your views on patriotism, abortion, races, countries or whatever.
But it does NOT mean:
- people won't mock you, ostracize you
- you can't be fired for things you say
- people won't boycott your business
You're (almost) free to say what you want without interference from the government. But the First Amendment does not shield us from the reactions of other people--including employers, customers, friends and neighbors.
A Hollywood celebrity learned this lesson recently. He participated in an anti-police rally and is quoted as saying, “When I see murders, I do not stand by . . . I have to call the murderers the murderers.” (He was referring to the police.) In response, several police unions called for a boycott of the celeb's new movie. In a subsequent interview, he said, "I was under the impression that I was an American and I had First Amendment Rights."
He is and he does. But being free to say what you want does not mean there will be no consequences for you.