I find it interesting that Ms. Harris, who I like and believe might be the democratic nominee, see herself as "Black". Her mother, I believe was Indian, while her father is Jamaican. I believe emphasizing her "blackness" is a political move to steer Blacks away from Biden. She is therefore exploiting her "blackness", but this is all well and good in politics.
She went to Harvard and is a member of a huge black sorority. She definitely has a black identity and it might even have been her mother that put her up to that. If the Indo KKK want to engage in honor killings over marrying a black man imagine Asian Indians in the late 60s.
Her mother likely told her that her Jamaican family will accept her while her Indian family quite likely wouldn't so it would be better to anchor her identity around being black.
I very much doubt that Kamala joined the AKA because she planned as a college kid to run for president of the USA.