Like a Young Earth Creationist is an "Geologist".
Mr Brat starts with his conclusion that Ayn Rand was right about everything (anything? something?) and searches for data that he can present in a way that could plausibly suggest that Rand wasn't a total loon.
I'm sure that in at least one of the classes he taught, he must have expounded on how the minimum wage is destructive to the interests of the poor. Maybe his filter is at least good enough to realize how stupid that sounds to everybody else.