If you're upset about fictional female characters participating in combat, but not about the presence of potatoes in your medieval European setting, congrats: you don't actually care about 'Historical Accuracy', you're just a sexist lil' shitgoblin! 
When you break those other areas of realism you still understand the motives of people If you make a world where women will fight instead of happily going along with the winning men you made a different human nature - at this point your game is about an asexual alien species