Therefore, if you are a woman wanting the ability to handle herself against a male attacker you need to not let all other factors be equal. You need some combination of superior technique, superior conditioning, superior fighting spirit, superior tactics, and/or superior weaponry.
I'm a pretty decent martial artist, but I would not want to get into a fight with either Ronda Rousey or Lucia Rijker, even though I'm much bigger than either one.
*(Fighting in this context includes both striking and grappling, but perhaps not so much the use of knives and firearms. Those tools can do a lot to equalize for discrepancies in size and strength.)