The problem with what you're saying here, and in other places above here, is that it's actually wrong. Student loan forgiveness, sure, but a lot of Democrats including Kamala didn't run on LGBTQ rights (sure, her platform supported it, but it wasn't exactly a big topic in her speeches), global warming, or whatever other bogeyman your neighbors might think they did.
Democrats, including Harris, ran a center right campaign. Their biggest mistake, I think, was in trying to appeal to people like your neighbors and the people in the South and Southwest who will never vote for them. In doing so, they lost a whole lot of people on the left who are already not enthusiastic about voting for them.
Anyway. The way Democrats would win some elections would be to actually do something. When they're in power in Washington, they start claiming that they can't get anything done because Republicans are blocking them with procedural shenanigans or other similar stuff. Now they're in the minority and claiming they can't do anything to block the Republicans. Hell, Schumer and some others voted for the budget reconciliation package without demanding even a single concession.
Here in Minnesota, they got a lot more popular a few years ago because they finally had the trifecta of state house/state senate/governor for the first time in like 20 years and they decided to actually use their power to do things like add universal free lunch at schools. It's one of the reasons that Walz was so popular that they decided to try to make him the VP.
The Republicans lose an election and they're in courts fighting it, on the news claiming that the other side cheated, etc. The Democrats lose an election and they shake the other person's hand and say "good game."
Basically, the powers that be seem to think that it's 40-50 years ago and politics as usual.