Volokh is indeed smart and someone you should read. That said, he is too conservative and myopic. He also feels he is a "public persona" and when a person thinks like that, they feel compelled to stand by their views, even when they are worthy of revision or rescision.
I am not saying Volokh is completely a dillitante, but he risks it. If modern history has taught us anything, it's that none of us fit in neat little boxes, yet we all crave defining others. Still, we hate feeling we are defined.
But as Mr. Volokh demonstrates, we all risk feeling we need to support our public stances. Even though change and growth (and thus revision) of our views is not only desirable, but an inevitability, our egos try to prevent it.
If Mr. Volokh is reading this, I hope he knows I respect him and his viewws, but sometimes read his writing and feel he is expressing what he thinks others expect him to say, instead of trying to play opinion-maker instead of opinion-shaper.