There's a lot to unpack here, and I'm not sure that I can do it justice.

https://www.vox.com/culture/2020/1/20/20808875/gamergate-lessons-cultural-impact-changes-harassment-laws

This is one example of what happens when women are not involved in a space. It allows for casual misogyny, because men do not tend to call out other men for bad behavior, which further isolates women in the space and keeps new women from joining. Both as consumers as well as producers.

Having a more even spread across genders means that we should eventually see more content created for and by women, which in turn will make the whole thing more accessible, and may ultimately tamp down on some of the incel garbage that many online gamer spaces have allowed to fester.