that was an example, not an equivalence. I used that only to show that freedom of speech is one of the legal rights we have that are limited by the presence of other laws.
and a company can't stop dealing with you for any reason after a contract is signed. employment law usually says that when u sign the contract, depending on policies (that aren't at odds with ur state's laws) that's when you're protected, unless u violate a clause. the company incurs risks by violating that contract. its what entitles ppl to severance pay vs nothing sometimes.
it is completely different but again, that was just an example on the subjective enforcement of the freedom of speech. the freedom of speech is at odds with other laws like I said, like hate speech for example.
It's easy to find a way to make it seem like somebody broke a rule within the policy.