Yeah, I don’t think she’s qualified either. But VPs are seldom, if not never, chosen based on talent, but rather to round out a ticket. Joe chose Harris because she contrasted with his Old White Dude TM vibe. And Trump chose Mike Pence in 2016 because he was evangelical, appealing to the Hyper-Christian GOP base since Trump was seen as socially liberal beforehand.
Now, I think that VPs should be chosen on merit, but given that VPs rarely do anything, it’s not the end of the world if they’re not