In his latest attempt at a comeback, Kanye “Ye” West returned to the stage in Los Angeles with a spectacle designed to signal resilience, relevance and, perhaps, redemption. Instead, it has reignited a familiar question: who, exactly, is willing to stand beside him — and at what cost? Friday’s sold-out SoFi Stadium performance, his second high-profile U.S. show in years after a Wednesday event at the same venue, which drew tens of thousands of eager fans, featured a parade of collaborators and high-profile supporters, including Travis Scott and CeeLo Green and a surprise appearance by Lauryn Hill. The night was...