Like all generalizations, it's such a stupid, vile thing to say. I wonder if he writes articles featuring derogatory comments about "most Americans/West Indians/Muslims/Jews/policemen/physicians/youths", etc.
The idea of taking reporters up for a flight and acquainting them with the realities of light aviation is usually a good one; but this fellow has proven himself so prejudiced that he is probably a lost cause. I'd suggest that the time and effort involved would be better spent entertaining a more neutral reporter, who might be open-minded or at least not such a demonstrable bigot.