The Democratic party is a coalition of many disparate groups who are joined together out of self-interest.
Because we're a coalition, our solutions need to be more far-reaching and a bit more universal. Think of something like health care. It's something we all want and can generally (mostly) agree upon. And it's vital for the health of the party to be a bit more focused on universal issues, because getting into the nitty gritty of what each coalition member wants can drive division and fracture the party. It's why we'll never have a serious conversation about, say, reparations. (Outside of, "Yes, interesting. We should talk about it. Sometime. That is not now." ) Because it would divide the party. But generally being against racism? Easier, includes more people, something to agree upon.
So, this assessment in the OP is awfully rose-colored and a little self-serving in the direction of being what one wants to believe of oneself. (Spoiler: It will be good things).
"We don't create others."
I mean, really? Have you met us? Even I, who strive harder than most, I think, to be even-handed, have some others lurking about in my head. All day everyday is talking shit about the other in most political spaces. I could spend all day everyday just picking off all kinds of ideas and assertions, "Newp. Wrong. Untrue. That's not how they think. Stop reading Twitter."
We create others just fine.
But that's because we're humans. Folks is folks. We don't have to sniff our own farts.
If we'd just be normalsauce for one day and recognize that, our country would be in a better place. But we're (everyone) entrenched, partisan, toxic, and draw cultural lines. Toss it into the internet and social media and you've got a shit stew going.
Makes for interesting coffee reading, though.