“The Dems would dump him in a heartbeat, but they know that Kamala Harris can’t do the job either and they don’t want to be stuck with her.”
I don’t think that’s it. Kamala CAN do the SAME job as Biden, which is to smile, wave, shake hands, read from a teleprompter, eat pudding, and basically be Obama’s puppet. She may not be very good at these, but she can do them. The real issue is she isn’t even as likable as Biden, which is pretty awful.
You nailed it.