Diversity hiring simply for the sake of diversity is always a bad idea. One, it adds nothing to the strength of the organization. Two, it creates dissention within said organization. Three, it's a lazy way to hire. Four, and perhaps most importantly, it's an insult to the group of people you're pretending to be helping. In this case choosing Kamala meant that out of all the women of color in the entire fucking country, none were as qualified as Kamala. That's a slap in the face to the thousands, dare I say tens of thousands of women who are vastly more qualified using any metric one cares to. And now they're stuck with her.