Women in Tech? They're doing it wrong.
The fundamental issue is a culture and tradition problem. Girls were taught to be pretty and get married. Funny thing is, it IS a smart decision at the time and also most of today's.
Think about this, you get married and you can let your hubby do all the hard thinking and if you're lucky you get free money to spend and do work/ have fun as you like (research shown ~80% spending are by women in commercial store. men earn money, women spend them). Heck, even today men are expected or willing to pay for women for a meal. (try this, get a kid to ask to waiter for the check. See whether the waiter gives the wife the check or the husband the check. Also note whether it is a waiter or waitress)
So until the Men change and make that 'decision' weak like demanding higher technical skill women to marry, there is not much reason for women to look for IT or other Critical Problem Solving job. Unfortunately, the world has more men demanding women (there's a whole industry for those men, called p**n) and even a demand for lower technical skill women (just to make themselves better). So their decision still remains valid.
The only women looking at Problem Solving job are plain self interest, contradicting norm of culture and tradition being passed down. This is why there are so few women in those jobs.
Another issue is generation problem where women are taught to be the one caring for kids. So giving being taught being pretty and need to care for kids, what subjects are you more likely to look for? Social Science, nursing, teaching, liberal art, etc. If we want to change that, we need to develop ways for women not need to care for kids 100% of their time, which is the best we can do (washing machine, microwave, mixer, dish washing machine, school, etc.). Unfortunately, it still can't fix the first issue.
In short, the issue is caused by men implemented by women. To fix it, men need to demand Higher Technical Skill women for marriage, design more innovation that reduce time needs to care for kids and teach their daughters instead of letting their wife re-teach "it still works" tradition.