All recent accusations of bias have one thing in common, the same thing that Facebook has dodged questions of reform or regulation over and generally failed to directly address: its proprietary, micro-targeting ad platform. It was this ad platform that allowed the Russians to pay for propaganda in rubles, it was this ad platform that allowed Cambridge Analytica to manipulate its third-party audience categories, and it was this ad platform that has brought the latest accusations of gender bias back to Facebook.