The insanity here is not in choosing a R or D, but the absolutist manner in which he identified himself as a conservative. Its like saying that I'll always believe that the theories of Issac Newton for life are absolutely true, regardless of what experiments show. You should always be willing to recalibrate your theories in light of new information. I suspect there is something else behind the conservativisim that is his real goal in life, politics, economics,etc that is unspoken. That is what the focus should be rather than the generic conversation stopper of "conservativisim".