I wanted to add this link to the famous court case of Miller v California that helped define pornography and its protection (or lack thereof) under the first amendment. There is a lot to discuss here regarding offensiveness and "social value" especially in regard to the fact that the case dates back to the 70's. Perhaps the same case would be tried differently today.
This seems like a smart commentary on many of the issues we're seeing in the book and it helps modernize the Miller v California debate. It's again, largely focused on the idea of policing rights which focuses on freedoms of expression.