How is sexism a privilege? Sexism may be a bias, or as the grandparent hypothesizes, a lack of empathy;
Privilege may arise as a result of these biases (just as much as it would arise as a result of any other bias, against rural people, people with non-majority ethnicity, against unattached males over a certain age, etc.), but contrary to the title, the article is about sexism and not about privilege.