the article should be shortened down to this one paragraph to understand why they’re just sitting there and letting it happen; tldr, the black caucus is a center right organization that’s friendly right leaning causes like aipac:

More centrist CBC members and their political allies have been involved in combatting progressive gains in the Democratic Party. In June 2021, Jeffries, along with Reps. Josh Gottheimer, D-N.J., and Terri Sewell, D-Ala., another recipient of AIPAC cash, launched Team Blue PAC to protect Democratic members facing primary challenges from their left. And last June, Democratic operatives closely aligned with CBC leaders launched a new dark-money group to fend off primary challengers.