Why not? Because they weaken the military, they don’t strengthen it.
We don’t fill the military with all the men we want and then add some females, we remove a man to put a female in his place.
What combat leader would not want to replace his man warriors with a shorter, lighter, weaker, sicklier, less aggressive, slower moving, more terrain limited, reduced distance traveling, hygienically vulnerable, smaller weight carrying, more prone to injury, version.
If that is true the - NO - I disagree.