Early in the pilot for “Good Trouble,” a spinoff of the family drama “The Fosters,” the show’s heroines, sisters Mariana and Callie Adams Foster, visit their new home, in Los Angeles. They’ve signed on at the Coterie, a bargain-rent “intentional community,” and the decision looks like a bad call. Their room has mice. The bathroom is communal and coed. Their housemates seem like millennial cartoons, the type most shows would turn into satirical mincemeat: improv comics, a “body-positive Instagram influencer,” a prickly Black Lives Matter activist. “What’s a Sad Girl Party?” Callie asks, nervously eying the bulletin board.
But, right away, those cartoons get shading. The activist, Malika (Zuri Adele, the standout among the new-comers), came up through the foster system, as Callie and Mariana did, unlike them, she was…
