At the next election, in the ads and at the rallies, Democrats need to have more working-class people- of ALL races, creeds, orientations and identities- in the ads and at the podium at rallies.
Ditch the celebrities- if they want to donate, fine- just don't have them be the face of the campaign.
Talk about social justice AND economic justice, and make it clear the two causes aren't in conflict and that the vast majority of people in one cause are equally committed to the agenda of the other.
Whoever pressured Harris into ditching her call for price controls- a proposal that was resonating with voters all over the spectrum- and, instead, running a bland, passionless Hillary-style campaign that talked about essentially nothing but reproductive choice and the need to elect a woman- should be barred from any further involvement in Democratic politics.