You mean the chart of video game growth over time?
This might be a bit of a stretch but it has rung true with me and many other people. We all became interested in technology and computers because of video games. Our interests in video games transitioned to taking programming courses in high school and college.
The next step should be to ask why women working in a female dominated profession are harassing the men in the same profession, or why men working in male dominated professions are harassing women. Maybe if we could figure out a good answer to that, we could turn the tide of more work professions becoming gendered with unbalanced ratios.
The one place that I agree with you on this however, is childcare. I've dealt with a large amount of bullshit while staying at home with my newborn, and male caregivers are typically assumed to be incompetent.
Did you friends mention how children to men who take up female professions get teased in school because the job choice that their dad took? How their spouses don't want to tell friends what their partners job title is. How male nurses get question like "are you not a man, why are you a nurse?". People who walk up to a male midwife and accuse him of being a pedophile, ready to punch him? Read any of the multiple news article on how male preschool teachers do not feel safe at the job, feeling like they are under constant accusation by parents and co-workers? Same articles that talk how they dislike being the "representative" male, always chosen to do "male" stereotypical job activities?
But more importantly, the data don't lie. Male teachers and male students that are studying to become a teacher exit the job profession in rate about 450% higher than a female counterparts. Are we going to use the same old arguments that its something genetic that a male teachers starts working and after a year or so decide leave the profession?
I've talked to women who left computer science, not because of the difficulty of the courses, but because of the attitude that men at our university had towards them. The data supports this, take a look at the charts of women in CS over time.
And honestly, talking to women older than me, a refrain I hear from nearly all of them is "I'm not a math person". I had a relative in her 80's with a math PhD who would not tell people because she thought it was "too manly."
My coworker, who got into tech because she thought it was the only way she could stay in Seattle, frequently says "I'm not a coder." She just did a code review of one of the projects she's working on that is significantly better than any of the other work I've seen coming out of QA or DevOps at my job.
Your wife is an anomaly. So is mine. It doesn't take much effort to see that in our field.