His whole debate schtick was fake. All of media is saying that he encouraged discussion or welcomed people to politics, none of which is true. Charlie manufactured scenarios where he could bully unprepared people to promote far right propaganda.
He sits in a booth with a microphone to present himself as the expert, giving him advantage in the conversation. He chooses unprepared college students from campus who are between classes. Then if someone proves that he's wrong, he just won't upload the video. There was no real debates.