You're correct. The public knows less and less about most things every year.
Devolution. (I think there is something to that.)
As for attack on science, the "learned" social science types are just as anti-evolution as the creationists are (as you've pointed out before--all of it a post-modern deconstructionism) and they use exactly the same arguments that the IDers use. As you know, their motivation is derived from behaviorism. They abhor the idea of genetic contributions to human behavior or society. Remarkably, there are quite a number of biologists among this group.
Intellectual entropy?