The biggest reason that misogyny exists in tech comes down to the fact that there aren't many women in tech. As an example my Calculus based physics course in college had 150 people enrolled. 3 of whom were female. And honestly, when roughly 2% of a workforce are women, there is a real risk of misogyny developing. The solution to this problem is that we in tech need to do more to inspire young girls to enter the tech industry.