Women aren't made to fight. They're naturally adept at nursing, childcare, biology, cooking or organising a house. You seen a woman put jam jars on a shelf? Lined up perfectly. Men are better at fighting, transporting the elderly, chemistry, eating and organising projects. I do admit there are definitely exceptions, like some women can only cook salad and Charles Darwin was male.
There's an MMA manga called Tepuu, which is all female.