Although, on a sad side note, the science of today indicates, though it doesn’t prove, that there is, and so presumably was, some basis for those earlier scientists’ conclusions though the causes cited in the old days were wrong and the results exaggerated.

There’s no bias inherent in identifying basic physical traits and how people instinctively – or possibly culturally – respond to them.

Sounds an awfully lot like an argument that favors the bad old Jim Crow days:

Under Jim Crow, African Americans were relegated to the status of second class citizens. Jim Crow represented the legitimization of anti-black racism. Many Christian ministers and theologians taught that whites were the Chosen people, blacks were cursed to be servants, and God supported racial segregation. Craniologists, eugenicists, phrenologists, and Social Darwinists, at every educational level, buttressed the belief that blacks were innately intellectually and culturally inferior to whites. Pro-segregation politicians gave eloquent speeches on the great danger of integration: the mongrelization of the white race.

http://www.ferris.edu/jimcrow/what.htm

Accepting differences isn’t the same thing as discrimination unless it also contains an overall value judgement on the people involved.