My gut tells me that of the top tier candidates Warren is the worst, but she does have progressive enthusiasm. I dont think she has gravitas, and she doesn’t have Bill Clinton to fall back on. I dont think America wants to be in a single parent home headed by the embodiment of every PTA moms nemesis.
Kamala is a skank, but she would probably do better.
Buttigieg sounds great but he is worthless.
It’s going to be Kamala or Warren. They prefer Kamala like you said because she’s black (although not really) and a woman but if she falters they’ll fall back on Warren. They don’t want Bernie nowhere near the nomination and consider his campaign and supporters as a insurrection group