They do this, usually, because it's the only response they can come up with. We see it a lot in public policy debates and also in perspectives on American history.
So here's a great example of why more and more Americans distrust self-proclaimed "experts" - the self-righteous intelligentsia among us - particularly when those "experts" also have a very obvious political agenda attached to their "expertise":
Currently there's a huge fraud being perpetrated about man-made global warming--or, since the "warming" thing ain't exactly selling--"climate change." During the 1970's, the Chicken Little experts were clucking about the coming ice-age. Walter Cronkite (the "most trusted man in America") was one of the cluckers:
So remember the "intellectual" among us who have embraced