The answer to your question as to how Harris became VP is because she is a Female Black. Biden himself told Americans in advance that whites and men would be excluded from consideration and that he would only select a Female Black.
if she were white, she would never have gotten to where she is. In fact, she even lied about being a “disadvantaged” minority to get into law school. She has lied, stolen other people’s ideas, and plagarized her entire life.
So that’s how she got to where she is