If you read your link, first of all it's Israel based, we don't live in fucking Israel, the cultures are completely different and don't transfer to the US. Secondly, all it literally said some teachers have a bias, and others do not. Color me surprised. There's no link to the study, and the way they quantity "suggestion of bias" is that some students do well on external (standardized) exams rather than the ones their teacher gave them, leaving out the billion other possibilities for the disparity in performance between two different exams. It says nothing about negative effects of bias on the boys, clearly the study only exists to push one narrative. In America, more women graduate college than men, they just choose different paths. It's not a systematic oppression of women.