I don't think ethnicity has ever been done well in Poser, at least "out of the box."

The closest were the G2 figures, but those had to be purchased separately. (Though they were cheap or free for Passport Club members.)

V1/2 and M1/2 had a "tone" package with MAT files that would change the skintones of the figure, but that resulted in palms and soles also ending up dark. Not very realistic.

The ethnic morphs for V3/M3 had to be purchased separately, and didn't work very well. They looked nice enough, but the standard expression morphs broke the mesh.

V4/M4 were better, with their "elite" morphs and textures, but again, they had to be purchased separately.

La Femme has ethnic characters you can purchase separately, and Dawn 2 will be the same. (The ethnic characters for Dawn 2 that Cath is working on look amazing.)

I think they should include the "ethnic" G2 figures as part of the free content for Poser. I doubt they're selling many copies of Kelvin, Olivia, etc. now.  And diversity is important for the corporate types who might use Poser for training videos and the like.