Carville already complained a few months ago,
that 'the problem with the Democratic party is
that it has become too feminized'...
Try unpacking that....
What I think the OPer is trying to say,
is that their white male egos would make them lay off of President Biden a tad,
if Kamala was replaced on the ticket
with the 'white knight' Newsom---
Then they would have something new and exciting to talk about 
a new white male running mate
(and I can't dispute that the OP might not have a point--
regardless of how much damage dumping Kamala would do
to the Democratic coalition--- some of these pundits, particularly Carville,
have already amply displayed their disregard for the Democratic coalition
simply by demanding that President Biden withdraw from the race)
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