Also, in 1927, the United States Supreme Court ruled in favor of Eugenics in Buck v Bell. Less than 6 years later, Hitler came to power.

The Eugenics Crusade:

1927: The United States Supreme Court Rules for Eugenics in Buck v. Bell

https://kera.pbslearningmedia.org/resource/amex32ec-soc-buckvbell/the-supreme-court-rules-for-eugenics-in-buck-v-bell-the-eugenics-crusade/