contact us

Snail Mail
Washington Summit Publishers
PO Box 1676
Whitefish, MT 59937

(406) 356-6597

Whitefish, MT 59937

Washington Summit Publishers is an independent bookmaker specializing in genetics, anthropology, human biodiversity, and the scientific study of man.

Radix, WSP's imprint, is a series dedicated to the intersection of culture, philosophy, genetics, and society.

Washington Summit Publishers is a branch of The National Policy Institute, a not-for-profit organization that accepts tax-deductible donations.

Snail Mail:
Washington Summit Publishers
PO Box 1676
Whitefish, MT 59937

General Enquiries:
Customer Support:

(406) 356-6597


WSP's shop carries its own titles, as well as those of Arktos Media, Wermod & Wermod, Counter-Currents, and other publishers.

The Perils of Diversity: Immigration and Human Nature


The Perils of Diversity: Immigration and Human Nature


Byron Roth

Byron M. Roth argues that the current debate over immigration policy is unlikely to produce a satisfying outcome since it takes place uninformed by the science of human nature. Any policy of mass immigration will be profoundly constrained by fundamental features of human psychology, prominent among them is a natural bias toward one’s own kind and a wariness and suspicion of – if not hostility towards – others. The prospect for social harmony in multi-ethnic societies is thus problematic at best, and difficulties are compounded when groups differ in ability and temperament in non-trivial ways.

Roth explores the history of immigration to the United States, revealing that the earlier, pre-war immigration experience was so different from current patterns that it cannot provide a useful template for understanding and assessing them. In addition, Roth addresses the disturbingly undemocratic nature of the regime of mass immigration imposed by authorities on the citizens of all Western nations in defiance of their clearly expressed wishes. He shows that the chasm between elite views and public opinion is so deep that current policies can only be maintained by an increasingly totalitarian suppression of dissent that undermines the very foundations of Western society.

Add To Cart

BYRON M. ROTH is Professor Emeritus of Psychology, Dowling College. He received his BA from Rutgers University and his Ph.D. from the Graduate Faculty of the New School for Social Research. His work has appeared in The Journal of Conflict Resolution, The Public Interest, Academic Questions and Encounter. His previous books include, Decision Making, Its Logic and Practice, co-authored with John D. Mullen and Prescription for Failure: Race Relations in the Age of Social Science. The latter was described by the editors of the journal Political Psychology as a book of major importance to the science and the applications of political psychology.

Table of Contents

  • Immigration and Human Differences
  • Fundamental Principles of the Evolution of Social Behavior
  • Technology, Social Structure, and Human Evolution
  • Cultural Change and Human Evolution 
  • Historic Patterns of Immigration in the United States 
  • United States Immigration Since 1965
  • European Immigration in the Post-War Era
  • Immigration and the Future of the West 

"That immigration is the most intellectually stimulating of all political topics is demonstrated by Byron M. Roth's ambitious new book, The Perils of Diversity."

Steve Sailer

"Roth argues that policy is uninformed by evolutionary biology and psychology. In his work he examines the intersection between culture, genetics, IQ and society.

Though long and ambitious, The Perils of of Diversity reads easily, and rewards the reader with a thorough grasp of the crisis we face...offers us a cornucopia of information and argument...

—F. Roger Devlin

Roth has written a fantastic book; well-researched, science-based, and full of useful information and sharp observations.

 Ole J. Anfindsen

Washington Summit Publishers