Planned Barrenhood foundress Margaret Sanger sent one Lothrop Stoddard, Ph. D., to Germany in the 1930s to be Planned Barrenhood's "official observer" at the Nazi eugenics courts and to report back breathlessly on what a spiffy job Herr Hitler was doing in cleaning up the gene pool by slaughtering Jewish people and others regarded by Hitler and the Nazis as "inferiors." Eugenics is an attempted exercise in applied evolution. It does not work either. More of Stoddard's racist mythology can be found in his WW I era tome: The Rising Tide of Color in which he advocated eliminating everyone but Nordics and a few servants.
Sanger also cited test results of US military tests of Eastern European Jews not fluent in English to "scientifically prove" Jews to be "intellectually inferior." I disagree with her a priori methodology. Do you?
If you think that Hitler was (when governing the Third Reich) a Christian and not a pagan in love with Norse mythologies, then that is on a par with your curious notions and Darwin's regarding the allegedly godless origin of man. If you don't like Kathleen O'Keefe's thesis or those of others cited in the main article, then , by all means take up your objections with her and/or them.
Your observation as to Hitler's distortions of science and religion seems just as applicable to Darwin and his cult.
Darwin is dead---God.