People with different ancestry (race) exhibit different physical and genetic traits, not character traits. Differences in character, intelligence, Hitler, eugenics these are all ideological concepts. They have nothing to do with science.
I don't label myself, I define myself as a large mammal, specifically an ape. Political correctness has slowed the progress of science. A prime example is Kennewick man. This 9,000 year old North American skeleton with Caucasoid features is unavailable for research because the local Indian tribe refuses to permit it, and wants it buried back in the ground asap.