In an America demographically reeling from immigration upheaval and torn by post-Reconstruction chaos, race conflict was everywhere in the early twentieth century. Elitists, utopians and so-called "progressives" fused their smoldering race fears and class bias with their desire to make a better world. They reinvented Galton's eugenics into a repressive and racist ideology. The intent: populate the earth with vastly more of their own socio-economic and biological kind--and less or none of everyone else.
The superior species the eugenics movement sought was populated not merely by tall, strong, talented people. Eugenicists craved blond, blue-eyed Nordic types. This group alone, they believed, was fit to inherit the earth. In the process, the movement intended to subtract emancipated Negroes, immigrant Asian laborers, Indians, Hispanics, East Europeans, Jews, dark-haired hill folk, poor people, the infirm and really anyone classified outside the gentrified genetic lines drawn up by American raceologists.
How? By identifying so-called "defective" family trees and subjecting them to lifelong segregation and sterilization programs to kill their bloodlines. The grand plan was to literally wipe away the reproductive capability of those deemed weak and inferior--the so-called "unfit." The eugenicists hoped to neutralize the viability of 10 percent of the population at a sweep, until none were left except themselves.