Thanks, Daniel! Yes, I remember that question. Good for you! I can see where Hauerwas is coming from and it was my second year in a row both agreeing with him and disagreeing at the same time.
I think you're right: of course, as followers of Jesus, we say love trumps everything. But we live in a world that was torn apart last century by two horrific world wars and we needed an ethical discourse that people from all faiths and ideologies could agree on, and that's how the UDHR came about -- mostly due to the efforts of Eleanor Roosevelt, by the way. Her Xian convictions led the way, I've been told. So HRs discourse is a tool, not an end in itself. But if you care about peacebuilding in a war-torn world, then I'd say you'd better learn to use it!
Also, Nicholas Wolterstorff came to similar conclusions as a Xian philosopher. My book (Justice and Love: A Muslim-Christian Conversation) is still slated to come out next year. Wolterstorff features prominently in a couple of chapters of that book.
God bless you in your quest to become "a permanent unpaid intern" at church!!