I don’t have any particular fondness for “The Communist Manifesto” or “Mein Kampf”, but putting “The Kinsey Report”, “Introduction to Psychoanalisis” and particularly “The Origin of Species” in the list of the most harmful books of the 19th and 20th century smacks of ignorance and placing ideology above science.
Charles Darwin has the dubious honor of being cited twice in the above mentioned list (once for “The Origin of Species” and once for “Descent of man”). Those stupid American right-wing, Christian fundamentalists still cannot reconcile the theory of evolution with their faith. Asshats.
HUMAN EVENTS ONLINE :: Ten Most Harmful Books of the 19th and 20th Centuries: “HUMAN EVENTS asked a panel of 15 conservative scholars and public policy leaders to help us compile a list of the Ten Most Harmful Books of the 19th and 20th Centuries. Each panelist nominated a number of titles and then voted on a ballot including all books nominated. A title received a score of 10 points for being listed No. 1 by one of our panelists, 9 points for being listed No. 2, etc. Appropriately, The Communist Manifesto, by Karl Marx and Friedrich Engels, earned the highest aggregate score and the No. 1 listing.”

