Gender-based violence is deeply entrenched in patriarchal cultural perceptions and practices that reinforce injustice and powerlessness, particularly among women and girls.
As a consequence, both the incidence and brutality of gender-based violence also increase.
Justifications for violence frequently are on based gender norms – that is, social norms about the proper roles and responsibilities of men and women. These cultural and social norms socialize males to be aggressive, powerful, unemotional, and controlling, and contribute to a social acceptance of men as dominant.
I would have to say it's part of the theme. Morality and politics is the ethos of the story, aka origin aka theme. With-out a theme there would be no plot...and no setting. So... C. Theme