Yeah cuz you need beefy muscles to pilot MACHINES *eyeroll*!
Are these guys always under the impression that warfare is still done medieval-style?
And even so...Joan d'Arc, Queen Boudicca, Mulan and countless others...they didn't have tanks, machine guns, drones, atom bombs....
(Granted, Boudicca was eventually defeated but she was pretty darn kick-ass & won a slew of battles & totally flattened a few Roman settlements. If anything, her defeat was a fluke & she got the last laugh in the end, Rome began to fall apart, soon after...)
Say that jazz to those lady kickboxers, cage-fighters, bodybuilders, bounty-hunters, etc....I DARE YA!
You'll be more than Perplexed...you'll be Pulverized!
When a woman in touch with her inner Shakti, she can do anything...size weight & physical strength differences be damned. Just ask any random momma-bear, she can take down a much bigger, brawnier male bear! Human females have this too, it's just been greatly suppressed over centuries societal conditioning. It's mother nature, mommas protect their young.