When he said he wasn't a scientist (well duh), he wasn't really being humble, he was bragging. To the right-winger, it's a virtue to not be one of those Satan worshiping sciency guys. The fact is that they would still be claiming the world is flat and un-moving (like is says three times in the Bible), if they could figure out how to make money off of it. It is only common sense after all. We can't be spinning west to east at 1000 mph, that's just crazy, and gravity is just a theory after all. Try to explain to one of them that gravity is really the warping of space-time and not an attraction.
As long as we're talking about science, how about the Iron Dome