Read Margret Sanger's writings. I got these from Wikipedia:
"It is said that a fish as large as a man has a brain no larger than the kernel of an almond. In all fish and reptiles where there is no great brain development, there is also no conscious sexual control. The lower down in the scale of human development we go the less sexual control we find. It is said that the aboriginal Australian, the lowest known species of the human family, just a step higher than the chimpanzee in brain development, has so little sexual control that police authority alone prevents him from obtaining sexual satisfaction on the streets."
" In "A Plan for Peace" (1932), for example, Sanger argued for:
A stern and rigid policy of sterilization and segregation to that grade of population whose progeny is already tainted or whose inheritance is such that objectionable traits may be transmitted to offspring."
"It is a vicious cycle; ignorance breeds poverty and poverty breeds ignorance. There is only one cure for both, and that is to stop breeding these things. Stop bringing to birth children whose inheritance cannot be one of health or intelligence. Stop bringing into the world children whose parents cannot provide for them. Herein lies the key of civilization. For upon the foundation of an enlightened and voluntary motherhood shall a future civilization emerge."
Sounds like a racist to me.