After she returned to the US, she adopted black. I wonder if her sorority knew how little black she was, or if they cared.
I think her father qualifies as a genuine character. While his view of economics slants towards the left, he seems likeable. (Nobody is perfect.)
https://www.jamaicaglobalonline.com/kamala-harris-jamaican-heritage/
I haven't found why he didn't (doesn't?) support her politically.