We get reports from Facebook about the audience viewing our milsim page. Nothing detailed or personal, just how many views etc, but it does state the mix between male and female. Not surprisingly, its nearly all male viewers.
I suspect this is a common theme for airsoft generally, not just milsim games.
My view is that some females will be into airsoft but a lot wont for a variety of reasons.
Whats the old saying about you can lead a horse to water !
In my experience being married for a lot of years, its important for both partners to have hobbies and to let each other indulge as long as its not damaging to the relationship and you still get some time together, so its all good providing it doesnt become all absorbing.