Rival political factions often agree on the progress premise itself

Evidence

Like enslavers and centrist anti-slavery Americans agreeing on the need to colonize free Black people (but disagreeing on colonizing the enslaved), leading white Republicans and Democrats agreed that substantial progress had been made (and disagreed only about whether racism was over). — Nikole Hannah-Jones et al., The 1619 Project, 1287

Categorization

• XREF: Structural echo of the reader’s core reframing point: disagreement between factions can itself presuppose a shared frame (progress as done vs. ongoing), paralleling enslavers and centrists agreeing on colonization. — connects to: Bipartisan imperial consensus ran on a benevolence veneer both parties shared.