However, I've known several Marines, two Rangers and one SEAL. I know I wouldn't last a week in SF. No doubt there are some tough, fit women out there. But the genetic traits of our species are against them. The females of our species tend to be smaller and weaker, period. No amount of feel-good PC babble supporting some agenda is going to change that.
A 100 lbs pack is a 100 lbs pack. After a while it comes down to physics.