Probably already mentioned in this thread by other users but... I don't really care who/what does the video as long as it is good quality, educational, creative, well-spoken and I can learn something. If people want to mix electronics and being titillated there are plenty of videos out there to watch... such as SexyCyborg and CodeBabes. Personally I find it more of a distraction, and I find it exploitative and sad that many of such videos/bloggers with questionable educational value end up getting millions more subscribers and video views based on the amount of skin they show, or the thumbnail "click-bait" they use, than the content of their material. Imagine if Dave had to do his videos topless and in a Speedo to gain viewership (actually better not)...
I also don't feel the need to "force" some kind of equality in the contribution of material from either sex. Whoever wants to contribute will, regardless of their gender. Anyone can upload a video to YouTube and ideally should be judged and rated and gain subscribers based on what they can contribute educationally and creatively. Why not let things sort themselves out.... the genders being equally provided with opportunities to learn and work in the electronic fields, so that in the future it will result in more balanced content as a result.