The mythologist Joseph Campbell considered Freud's "Totem and Taboo" and Jung's "Psychology of the Unconscious" (1912) the two key works that initiated the systematic interpretation of ethnological materials through insights gained through the study of neurotic individuals. The critic René Girard wrote in "Violence and the Sacred" (1972) that, despite the rejection of "Totem and Taboo" by "contemporary criticism", its concept of collective murder is close to the themes of his own work. The historian Peter Gay suggested in "" (1988) that in "Totem and Taboo" Freud made conjectures more ingenious than those of the philosopher Jean-Jacques Rousseau. Gay observed that "Totem and Taboo" was in part an attempt by Freud to outdo his rival Jung, and that the work is full of evidence that "Freud's current combats reverberated with his past history, conscious and unconscious". The critic Harold Bloom asserted in "The American Religion" (1992) that "Totem and Taboo" has no greater acceptance among anthropologists than does the Book of Mormon, and that there are parallels between the two works, such as a concern with polygamy. Richard Schechner criticized Freud for having assumed in "Totem and Taboo" that some humans are more "primitive" than others. The psychologist David P. Barash concluded that in "Totem and Taboo" Freud "combines idiosyncratic, almost crackpot fantasy with startling profundity and originality". Anthony Elliott argued that Freud's account of social and cultural organization suffers from limitations, and that, because of anthropological knowledge that became available subsequent to "Totem and Taboo", the theories Freud proposed there now have few advocates. Elliott wrote that "Freud's attempt to anchor the Oedipus complex in a foundational event displaces his crucial insights into the radically creative power of the human imagination", ascribing to real events "what are in fact products of fantasy". Elliott added that Freud should be credited with showing that "reality is not pre-given or natural", but rather structured by the social and technical frameworks fashioned by human beings, and that "individual subjectivity and society presuppose one another". Dominique Bourdin wrote that in "Totem and Taboo" Freud "develops an idea that clearly embarrasses the current psychoanalysts, but that is essential to the logic of Freudian thought: that of Phylogenetics".