It depends how capable one is of understanding the complexities. In Kamala Harris's case, she is biracial, with a Jamaican father and an Indian mother. While she may be "predominantly" Indian in terms of her ancestry, that does not negate her black identity. It's entirely possible to identify with multiple races or ethnicities simultaneously, and Harris has spoken openly about her experience as a woman of color and her commitment to addressing issues affecting black communities in the United States. Furthermore, reducing Harris's racial identity to a simple political calculus of "the black vote" vs. "the Indian vote" is overly simplistic and ignores the many factors that shape people's political beliefs and values.