If you go with your own microphone you can shout out and shut down the competition and game your own youtube clips, while the competition can't trespass you from the property.

It's really the ultimate cheap shot.

You basically have to be a moron to debate someone like Charlie Kirk in the first place because the game is rigged; he has the table, the microphone, the editing, the security and if you object to the rules there's nothing you can do but walk away. The moment you get the upper hand he can simply kill the mic, stop recording, and move on to the next guy and all the meanwhile claiming he's doing it on neutral terrain.