That's the thing about IT. Almost all of the best IT people and technologists are self-taught, usually beginning in their teens.
So, if there is a gender diversity issue here, it comes even before finishing University. Possibly even before STARTING University.
I applaud efforts to balance opportunities for everyone, honestly. But I shy away from those efforts that take the form of "giving special treatment to xx group".
It's disheartening to see that approaching 65% of University applicants are now female. IT is an isolated area where there is a huge disparity, but it isn't too much different from other fields, such as education, where it is 80% female. That certainly is a field where there is active discrimination going on, in the other direction.
But placing the blame on IT shops and their hiring managers is misguided and wrong. There are fundamental demographic issues that can't be addressed by short-term fixes and "diversity hiring" programs.