Tierra Whack has a message for her critics: Start drafting the apology. The Philadelphia rapper returned Tuesday with “Totem,” a razor-edged new single that doubles as a warning shot ahead of her upcoming mixtape, Whack’s Museum , arriving June 19 on Juneteenth. Clocking in at under two minutes, the track strips away distractions, leaving Whack alone at the center of a sparse beat as she dismantles doubters and reasserts her place among hip-hop’s most inventive lyricists. “But I was born a