Then you're not talking about free speech, so it's not a matter of me misunderstanding the OP, the OP was written incorrectly. Certain groups wanting to limit the speech of other groups, if the former groups aren't the government then you're not talking about free speech. You're talking about wanting a public platform for anyone to say anything they want without social repercussions (such as protests, shouting people down, etc.) Except your right to speak in public doesn't trump their right to respond by doing anything legal, including shouting you down or protesting you.