I don’t think we need to get all out of shape about demons. To begin with, and readers can correct me if I am wrong, I don’t think that most people in the American haredi world really believe in demons. Yes, I know they study the talmudic passages that refer to demons, and will mention them as the reason for washing one’s hand three times in the morning, but based on conversations I have had with people in the haredi world (admittedly, most of them from the intellectual elite), I don’t think that they take it seriously. (When I say they don’t “believe” in demons, I mean real belief in the role of demons and how they affect humanity, as expressed in the Talmud and elsewhere.) It is almost like the emperor has no clothes, in that they don’t believe it but continue acting as if they do, afraid of what will happen if they are “outed”. (I have found a similar phenomenon with regard to Daas Torah. I have discussed this issue with many people in the haredi world, and have yet to find even one who accepts the version of Daas Torah advocated by so-called Haredi spokesmen and Yated Neeman.) But even if I am wrong in this, there are lots more important things to keep out of Modern Orthodox schools than an occasional reference to demons. How about the negative comments about non-Jews and even racist statements (sometimes under the guise of Torah) that children are exposed to in Modern Orthodox schools? How about rebbes telling the students that there is such a thing as spontaneous generation, which is akin to telling the students to sign up with Flat Earth society?
Marc B. Shapiro, “Answers to Quiz Questions and Other Comments, part 1”, The Seforim Blog (20 February 2012), n. 9 {http://seforim.blogspot.com/2012/02/answers-to-quiz-questions-and-other.html}