Here is an attempt to set the Democratic Party on the course that it should be on.
https://www.futuremajority.org/
The four-minute video reclaims the Dems as the party of the working class. It sets a positive vision. It rejects inequality, but supports business. It rejects identity politics in an interesting way. It includes the idea of family and the future. It encourages a positive American pride. It embraces aspirations. It includes the military and cops.
It is liberal, but not leftist.
As a pitch, it's way too slick and identifiable as a political ad. That aspect makes me cringe. Otherwise, as a moderate raised in a red area, I find it appealing and this is what I prefer the Ds to represent. Steer away from the muddy Democratic Socialism. Step away from the collectivist ID politics. Celebrate the working class -- which includes so many people with small-c conservative values which are often NOT out of step with small-l liberalism.