The right to free speech means you cannot be persecuted for what you say, it does not mean you are entitled to say it on whatever platform you want.
https://xkcd.com/1357/
And free speech is not absolute. Amongst the things it does not protect are:
> libel, slander, obscenity, pornography, sedition, incitement, fighting words, hate speech, classified information, copyright violation, trade secrets, food labeling, non-disclosure agreements, the right to privacy, dignity, the right to be forgotten, public security, and perjury.
https://en.wikipedia.org/wiki/Freedom_of_speech
https://xkcd.com/1357/
And free speech is not absolute. Amongst the things it does not protect are:
> libel, slander, obscenity, pornography, sedition, incitement, fighting words, hate speech, classified information, copyright violation, trade secrets, food labeling, non-disclosure agreements, the right to privacy, dignity, the right to be forgotten, public security, and perjury.
https://en.wikipedia.org/wiki/Freedom_of_speech