Think about it. When was the last time you read about a heroine who was not essentially modeled in the male heroic tradition? This tradition was consolidated by Scottish philosopher Thomas Carlyle nearly 180 years ago. Find me a heroine who isn’t an individual acting essentially alone and against societal expectations; who isn’t defined by a journey of self-discovery culminating in an extraordinary individual act; who sacrifices self and many of those she loves—but not her individual integrity or self-reliance—to perform that act; who is ultimately, retrospectively, praised or memorialized for that individual performance. Find me a heroine that is not a clone of millions of male heroes who have come before her.
Nowadays people don’t generally think in terms of heroic tradition, and there’s a good reason.