Actually, I think male bias is a problem in other academic fields. For example, we spent a long time thinking girls rarely have ADHD or Autism, and didn't even test drugs on women in case they might be pregnant. It's important to take a critical and objective look on why a women's studies would exist historically, in a setting where academics may not consider women worth studying.
[To be clear: I'm not saying that women's studies is some kind of objectively valid hard-proof field of study or whatever. I do think however it is true that historically women have been excluded in academic study populations, which might explain why there may have been a legitimate desire to have a field of study for that underserved population.]
