Warren would be very qualified. Maybe the best qualified candidate, but I hope the Democrats don't nominate her. I read stories about interviews with people in those mid-western Trump states in which a LOT of women said they don't trust women. Which I find very sad, but you have got to pay attention to your voter's prejudices. Politics is the art of the possible, not "what the losers wish was true".
They voted for a Black man, but not for a White woman. Misogyny runs deep, and it's not just men. There's obviously something wrong with how we teach girls to relate to other girls.