Under its influence, says one scholar, men and women have been “quite easily led into the most preposterously dangerous behaviour ” ​ — such as ‘ genocide, war, racist hysteria, religious intolerance and many other forms of irrational behaviour. ’ ​ — Easily Led — ​ A History of Propaganda.
Menurut ahli lain, propaganda menyebabkan orang - orang melakukan perbuatan yang sangat kejam dan tidak masuk akal. Propaganda juga memicu genosida (pembantaian massal suatu suku manusia), perang, dan penindasan atas dasar suku atau agama. ​ — Easily Led — A History of Propaganda.