Keith Head

Parental alienation remains one of the most contested concepts in psychiatry, psychology, law, and social work, having been excluded from the DSM-5 and removed from the ICD-11 while continuing to play a substantive role in custody proceedings internationally. This opinion article does not revisit the scientific case regarding parental alienation but instead documents a distinct and underexplored problem, namely the pattern in which proponents have responded to critical scholarship through organized campaigns to retract, withdraw, or remove that work from the record rather than through the ordinary mechanisms of scientific debate. A search of the published record failed to identify any instance in which critics have initiated comparable retraction campaigns against proponents, who have instead engaged through conventional academic channels. The asymmetry documented here aligns with established frameworks on the suppression of scientific dissent and parallels mechanisms previously identified in tobacco and climate research. The argument advanced does not depend on resolving the underlying validity question, because the integrity of scientific discourse requires that disagreement be addressed through evidence rather than through administrative mechanisms designed for a different purpose.