My friend Bob also asked me why I didn't structure my whole project around the notion of exceptionalism. This is a good question. I think I need to write the book about Lorca, and keep the exceptionalism material that doesn't fit in here for my next book, Snazzy Title: The Poetics of Cultural Exceptionalism. That one idea could take over the project and make the chapters I have already written useless.
The title maybe should be Against the Grain. A rebours. Sort of a play on Williams' In the American Grain.