Following the ideology-critical and identity-critical approach of Frankfurt School's Critical Theory, the emphasis of Bleibtreu-Ehrenberg's mostly post-structural and deconstructionist work (see social constructionism and social constructivism) on socio-psychological prejudice studies lies on the socio-cultural, socio-historical, and socio-psychological research into issues such as Western repression of sensuality (Leibfeindlichkeit) in Indo-European cultures, and extends into research on topics such as deviant sexuality, homophobia, misogyny, gender roles, and patriarchy.
Only two of her works, Mannbarkeitsriten (1980) and Der pädophile Impuls (1985/88) deal with anthropological research into the essential cross-cultural and cross-species nature of two particular sexual attractions beyond common Western stereotypes, paederasty (which Bleibtreu-Ehrenberg defines as "male same-sex paedophilia"[5]) in Mannbarkeitsriten, and paedophilia (defined as "sexual contact between fertile adults and infertile juveniles" based upon preference for these activities on behalf of the adult side, rather than situational offences[6]) in general in Der pädophile Impuls.
For example, during the Medieval Age, according to Benedictus Levita, Thomas Aquinas, and the Malleus Maleficarum, same-sex activities were abhorred as the most deadliest sin of all, which was superbia, i. e. the very pride to consider oneself above God and disobey His will as manifested in His most sacred commandments such as that sodomia (see sodomy), the common Medieval term for these activities, was considered identical to satanism and evil witchcraft, whereas when with the scientific revolution of Early Modernity the responsibility of priests towards sinners increasingly transformed into one of doctors and judges toward those now considered criminally insane, the rationale to keep the ban upon the very same activities along with the ostracization of those who committed such unspeakable "abominations" changed to emphasizing the alleged counter-naturality or perversion of their acts and pathologizing those who desired such.
Due to what Bleibtreu-Ehrenberg terms "distorted perception" (verzerrte Wahrnehmung, resembling Bob Altemeyer's compartmentalized thinking) of constructed social reality, the prejudiced aggressor regards themselves as a rectifying, maybe curing agent, as an upholder of "natural order" and "society", and/or as protector of people they perceive as "victims" of the discriminated.
[36] According to Bleibtreu-Ehrenberg's socio-psychological, socio-historical interdisciplinary approach to the topic of homophobia, drawing from research fields such as cultural studies, religious studies, ethnology, philology, and linguistics, the ethnocentric prejudice towards particularly male same-sex attraction and activities in the history of Western, Indo-European cultures is intrinsically identical to misogyny, thus originally gave rise to, and until the modern age maintained, patriarchal structures of Indo-European society.
The book Angst und Vorurteil – AIDS-Ängste als Gegenstand der Vorurteilsforschung was based on the work of the parliamentary inquiry commission Enquetekommission AIDS, of which Bleibtreu-Ehrenberg was a member, that was formed in order to research into the disease's social, cultural, legal, and public health care consequences and challenges, as well as Bleibtreu-Ehrenberg's own final report brought forth in parliamentary hearings and towards the Helmut Kohl administration.