There isn't any logic involved. I'm only trying to point out that it looks like (to me and the OP, at least) as if there are loads and loads of women involved in (hobby/amateur) writing, lots of women being published in fields that were previously male dominated (Fantasy, Sci-Fi), and males seem to have almost vanished in comparison. Probably there will be men around (I'm certain of it), but it looks like some area's of writing have been almost taken over by women.
Believe it or not, but area's where more than 40-50% of people are women, men suddenly disappear. Don't believe me? Find the stats for:
- Teaching
- Nursing
- HRM / administrative work
- Veteranians
All of those professions had a a _maximum_ of 30% women in them around 30-40 years ago. Now 80% or more is female. At least, in the Netherlands.
(small OT about teaching)
Spoiler:
There's even great concern nowadays that boys are doing badly in school because they don't have any male role models anymore. In some countries (Japan, and sometimes in the Netherlands as well), boys don't even HAVE a male teacher before they're 12 years old, in high school. Even then, those male teachers often only teach the exact subjects, such as maths, chemistry, physics, and so on, so if a student chooses a humanities based study, it's completely possible finish high school at 18 without EVER having a male teacher.
See:
http://ideas.time.com/2013/10/28/wha...-boys-succeed/
(Also nicknamed: "Boys are treated like defective girls.")
And:
http://ideas.time.com/2013/08/19/sch...stile-to-boys/
Therefore I'm somewhat inclined to believe that, if too many women enter a field, men stop caring for it and leave or don't even enter. I'm not saying this is good, bad, logical, or illogical, or stating that it is even true, but at least in some professions, it looks a lot like it.