Biden nominates Kamala, all boxes checked and solves their unpopularity problem. Biden then gets to hand pick a new VP (a black female of course) who would become the 2024 nominee, either as his running mate or he steps aside to clear then path for the second President Obama.
H->! gets to be #2 [which we all know she is plenty full of] and BiXiden is Arkansided.
Zero chance Mooch will give up her luxurious lifestyle to work. She is a queen to be served by the peasants. A queen does not work.