A new social media campaign launching Wednesday called #ShareTheMicNow will have Black women speak from the Instagram accounts of white women who have large platforms from Julia Roberts to Gwenyth Paltrow, Hilary Swank, Alex Morgan and Kourtney Kardashian. In the initial broad coalition of women, organizer Bozoma Saint John, Chief Marketing Officer at Endeavor, will take over Kourtney Kardashian’s account; Kahlana Barfield Brown will take over Julia Roberts’ account; Latham Thomas will take over Gwenyth Paltrow’s account; Angelica Ross will take over Hilary Swank’s account; and Ibtihaj Muhammad will take over Alex Morgan’s account. #ShareTheMicNow wants to magnify “Black women...