As a woman who used to work in tech, I would like to point out that you are missing some very key details here. The expectations placed on women in tech are much stricter, much more demeaning, and much more harsh than those placed on men. I had an employer while I was a contractor decide not to renew my contract because I “didn’t smile enough” and “wasn’t friendly enough”, and this was not an expectation placed on my male coworkers. The contracting agency I was working through tried to argue in my defense, but the employer was allowed to discontinue my contract at any time for any reason. Unfortunately, the contracting agency didn’t have any other positions open for me, so I was just out of a job.
In just about every tech job I’ve had, it was made explicitly clear to me that behaving and interacting with others in the same manner as my male coworkers was not acceptable. I was hired with the implicit understanding that, in addition to providing my labor and expertise, I was required to present myself as feminine, demure, and almost submissive to any men I worked with, even if I was their supervisor.
Women need more help getting jobs in the tech industry because they are more likely than their male counterparts to lose jobs to sexism, unequal expectations, sexual harassment, and hostile work environments. This job fair was not allowed to officially exclude men, so it would be helpful for male tech workers to acknowledge and understand their inherent advantages and refrain from interfering with opportunities aimed at helping women in the industry.