I think another question is whether it matters if there is a different place to have those debates. If a significant number of people enter universities and get indoctrinated into their monoculture, the minority that are exposed to a more diverse and honest intellectual debate elsewhere might as well not exist. It’s like when Reddit, Twitter, YouTube, and Facebook ban someone or some group or some content: there may be other alternate spaces where the same content is shared but if it’s not part of the same gigantic mainstream network its real influence on society is nothing.