Today, John Roberts’ Supreme Court handed down its much-anticipated ruling in Janus v. AFSCME, a decision that is poised to defang public sector unions and curtail the power of an already beleaguered U.S. labor movement. Because public-sector unions disproportionately empower and protect African-American women, this class of hyper-exploited workers is poised to be hit hardest by the anti-union ruling.