Most Helpful Girl
Good question. There have been 19 seasons of The Bachelor and 11 seasons of The Bachelorette, and not one of the bachelors or bachelorettes have been black.
I can't speak for the past, but recently, "fan favorites" are picked to be the next bachelor or bachelorette. Since there aren't many black contestants (only like two per season), black people don't have much of a chance at being a favorite. And to be honest, I'm pretty sure most of the bachelors/bachelorettes are more interested in marrying within their own race, leaving a cycle of white people running the show.
Personally, I think it'd be awesome for the show to have some more diversity. I also liked back when the bachelors were picked more at random (like from videos/interviews) and not from just being fan favorites.1