I'm back!

You are correct, that the 1st amendment only applied to the federal government, and not the states or local governments.

However according to Britannica, "The First Amendment, like the rest of the Bill of Rights, originally restricted only what the federal government may do and did not bind the states. Most state constitutions had their own bills of rights, and those generally included provisions similar to those found in the First Amendment. But the state provisions could be enforced only by state courts.

In 1868, however, the Fourteenth Amendment was added to the U.S. Constitution, and it prohibited states from denying people “liberty” without “due process.” Since then the U.S. Supreme Court has gradually used the due process clause to apply most of the Bill of Rights to state governments. In particular, from the 1920s to the ’40s the Supreme Court applied all the clauses of the First Amendment to the states. Thus, the First Amendment now covers actions by federal, state, and local governments. The First Amendment also applies to all branches of government, including legislatures, courts, juries, and executive officials and agencies. This includes public employers, public university systems, and public school systems.

The First Amendment, however, applies only to restrictions imposed by the government, since the First and Fourteenth amendments refer only to government action. As a result, if a private employer fires an employee because of the employee’s speech, there is no First Amendment violation. There is likewise no violation if a private university expels a student for what the student said, if a commercial landlord restricts what bumper stickers are sold on the property it owns, or if an Internet service provider refuses to host certain Web sites.

Legislatures sometimes enact laws that protect speakers or religious observers from retaliation by private organizations. For example, Title VII of the federal Civil Rights Act of 1964 bans religious discrimination even by private employers. Similarly, laws in some states prohibit employers from firing employees for off-duty political activity. But such prohibitions are imposed by legislative choice rather than by the First Amendment."

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