The Passing of the Great Race: Or, The Racial Basis of European History is a 1916 book of scientific racism by American eugenicist, lawyer, and amateur anthropologist Madison Grant. Though influential, the book was largely ignored when it first appeared; it went through several revisions and editions, but was never a best seller. Grant expounds a theory of Nordic superiority and argues for a strong eugenics program.I knew that eugenics was popular a century ago, particularly among intellectuals and socialists, but I thought that concern over white genocide was more recent. I guess that observers have been pointing out these demographic trends for a century.
Grant's proposal to create a strong eugenics program for the Nordic population to survive was repudiated by Americans in the 1930s and Europeans after 1945. It is considered one of the main works in the 20th century tradition of scientific racism and has been described as "The Manifesto of Scientific Racism".
Another book that probably could not be published anymore is The Great Heresies, 1938, by Hilaire Belloc. It has a chapter on "The Great and Enduring Heresy of Mohammed".
Update: Sweden is burning books that were once extremely popular.