“All societies are based on rules to protect pregnant women and young children. All else is surplus age, excrescence, adornment, luxury or folly which can—and must—be dumped in emergency to preserve this prime function. As racial survival is the only universal morality, no other basic is possible. Attempts to formulate a perfect society on any foundation other than women and children first! is not only witless, it is automatically genocidal. Nevertheless, starry-eyed idealists (all of them male) have tried endlessly—and no doubt will keep on trying.”
- R.A.Heinlein
No longer true.
LOTS of women work towards diminishing the natural male instinct to protect the female.
As we saw by the several men in the Aurora theater who died protecting their women, the instinct is not dead.