Thursday’s edition of the PBS NewsHour featured another way for the taxpayer-supported news outlet to section off certain subjects from balanced discussion — a “Race Matters” segment on the alleged struggles black women face in academia had no dissenting voices, just the host and the guest agonizing over the purported problem.The story was driven by the suicide of a college administrator in Missouri and also, more puzzlingly, by the travails of black academic Claudine Gay, who resigned as president of Harvard after her offensive performance failing to condemn anti-Semitism on her campus, followed by proven instances of plagiarism in her academic work. Was it because she was black? That’s what PBS wants you to consider.Three black female academics appeared as talking heads to make rote complaints about “microaggressions” and lack of institutional support, though frankly it’s hard to believe liberal academia wouldn’t bend over backward to help black professors succeed.Academia is especially toxic for political …