It seems like Bert's comments are intended to shock and alienate people rather than to clarify--and, not to pick on him, particularly, but, it seems that for a lot of people, what this discussion about is putting people in their place, and disenfranchising the music that they like--

As to disqualifying the collections of Child and Cecil Sharp, you pretty much disqualify all the folk music collectors and their collections--and there is nothing left to talk about--

So there is no folk music...