The First Amendment constrains only the government, so it is the biggest possible deal in this conversation. If you are talking about the a more general ideal

The First Amendment constrains only the government, so it is the biggest possible deal in this conversation. If you are talking about the a more general ideal of "open and free speech" - which private companies are never legally required to uphold, but may choose to espouse anyway - then it's clearer to say that instead of conflating it with the First Amendment, which will just distract others from the points you're trying to make.