The Rockefeller Foundation helped found and fund the German eugenics program and even funded the program that ultimately sent Josef Mengele into Auschwitz.
Much of the spiritual guidance and political agitation for the American movement came from the American Eugenics Society of New Haven, and the Eugenics Research Association of Long Island, which coordinated much of its activity with the AES. These organizations -- which functioned as part of a closely-knit network, published racist eugenic newsletters and pseudoscientific journals such as Eugenical News and Eugenics, and propagandized for the Nazis.
In an America demographically reeling from massive immigration upheaval and torn by post-Reconstruction chaos, race conflict was everywhere in the early 20th 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 not merely 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 Negroes, 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."