Censorship is censorship, UTO. If you only want to hear from the left, I guess there won't be much debate on issues. If this group is allowed to speak, and they start spouting hateful speech, then they should absolutely be unplugged and shut down. But until that time, they should be allowed to speak (even if it causes some controversy). 

Most students will undoubtedly think they are stupid - but they should be able to decide that on their own. (Right? Or isn't analytical thinking taught anymore?) . Otherwise, what is university if the students are only allowed to ingest pre-filtered, left-leaning speeches and info? One day, they'll get out in the real world and find that not everyone agrees with them. What will they do then?