Republicans have dominated elections for years while opposing the top 5 extremely popular major items on that list and more, and you think liberal Dems are doomed to lose because of two minor issues on the other end? Please.
Dems went moderate in the early 90s and what do we have to show for it in the years since? Donald Fucking Trump. Mitch McConnell. Gorsuch, Kavanaugh, Alito, and Roberts joining Thomas as the GOP continues its decades-long stranglehold on the Court. A bunch of Clinton-era centrist policies that caused lasting damage. A health insurance system that is being dismantled by Republicans elected on the promise to dismantle it, as like 30 million Americans remain uninsured.
What is even the fucking point of 4 years of Biden followed by Republicans retaking the House and some asshole like Josh Hawley becoming Trump 2.0, only smart enough to do worse damage? And that's assuming that old man Biden stays healthy and actually wins and doesn't go down like fellow inevitable moderate Hillary Clinton.
The popularity of reparations or, more likely, a commission to study reparations, is pretty much irrelevant. It would only matter to the extent that it's so unpopular that it would actually cause a liberal Dem nominee to lose the election notwithstanding all of the other issues in their favor. That poll doesn't support that notion. It's an unproven and likely false assumption that should not be the basis for returning to a continually losing electoral strategy.
Do I want a Dem candidate who will make reparations the centerpiece of her campaign? Of course not. But I'm not remotely worried about a candidate who happens to support it along with 100 other policies that will actually make the difference in 2020 and beyond.