In reality, the vast majority of legal experts agree that the 2A does describe an individual right. It is so hard to find another view that the Joyce Foundation had to bribe law professors and censor those with accurate views. Here is the Bogus explanation:
We felt that, for a variety of reasons, the collective rights model was under represented in the debate, and wanted to give scholars an opportunity to enhance or further illuminate the collective rights position. Sometimes a more balanced debate is best served by an unbalanced symposium. I did not, therefore, invite anyone who I knew subscribed to the individual rights model.Those are the words of appropriately named Prof. Carl Bogus.