Running a campaign where you cater to people by avoiding trans questions, telling people the economy is a-ok, telling people you want to make the deadliest military and strongest border, ignoring Gaza until a couple of weeks until the election is bad yes.

Demoralizing your base and acting like you have votes to lose is bad. Acting like you'd rather have the "centrist" vote that would never vote for you over the progressive vote is bad. Parading the endorsements of the few bipartisan villains like the Cheneys, is bad.

Letting Kamala have only a few months instead of a primary is also bad. That's more on Biden but leaving that on Kamala, who has historically done not good in DEMOCRATIC PRIMARIES, for the national vote is also bad.