I don't believe black or women voters love Harris. That was the gimmick you were told in the 2020 primaries, and it totally failed and she had to drop out before the primaries to not be embarrassed.
If you win black voters and women, you win Democratic primaries, period.
That said shoving her off the ticket, with no clear landing pad, will just look weak and desperate. If Joe had wanted to dump her he could have nominated her for the Supreme Court seat.
She won in 2o and beat Mike Pence in debate, the problem is inflation we haven't had inflation since the 70s what is Trump cure give more tax cuts to rich people