There was a recent scandal in Japan where it was discovered that the top medical university there had been faking test scores. Basically women had been outperforming men in the tests for years but the university had been altering women's scores so that men received university places instead of women.
Anyway, I was just reading up about another case where 5 Japanese students attacked a female student and the justification of one of the attackers was that "women are stupid"
One of the accused said in court that he had looked down on women because they are “stupid.”
www.japantimes.co.jp/news/2019/07/02/national/social-issues/japans-gender-problem-human-disaster-says-award-winning-scholar-chizuko-ueno/#.XSZ-bCUo_Dt
I've had a lot of experience of being treated like I was stupid, by both men and women, but mainly by men. It's like I go through life being seen as "a stupid person". But I loved university, because I loved not feeling stupid when I got essay or test results back.
Anyway this idea that women are stupid has definitely affected me.
Only after i discovered feminism did I learn how amazingly unstupid women actually are and how deep of a lie it is to say women are stupid