Earlier quoted context omitted.
I'm going to need a source on that one. I don't know of any decision where the definition of free speech includes a right to an audience. The owner of an auditorium or hall is allowed to not give platform to anyone. They get to decide who gets heard.
Well, the public forum doctrine https://en.wikipedia.org/wiki/Forum_(legal) holds that the point of free speech is communication among citizens. I don't have a cite for the direct quote I wanted (it's lost in my browser history), but the idea was that free speech is not satisfied by just making available a space in which one is not going to be heard by anyone. This doesn't imply a positive right to a particular audie…
You need to be able to cite a source, ideally a case or specific law, on such a claim because no one else I know holds to that definition. A link to a Wikipedia article about a different concept does not satisfy, because it does not cite a legal definition of free speech by US courts.