The ironic inversion of the genders
Instead of depicting women as weaker, Marinella shows that it's easy to explain the universe as a primarily feminine force, showing that women are more closely aligned to God than men, because they have the power to create new life. This is a convincing inversion of the commonly accepted, Patriarchal view.
The irony of inferiority complexes
When someone is short and weak, they sometimes develop a tendency to overcompensate. That's the basic idea of an inferiority complex, and the irony of it is that one becomes consumed by the need for power and the cognitive dissonance that comes from pretending to be superior when you aren't.
The ironic mistreatment of women as slaves
Men treat women kind of badly en masse, says Marinella. Even if women were slaves, is it ethical or laudable to be fickle and ungrateful and condescending? Ironically, men understand women as slaves because men are rarely mature enough to care about anyone other than themselves.
The irony of nobility, nobles oblige
Nobility is often not what it seems. It sounds like it means you get to do what you want, but the concept of nobles oblige indicates that actually, the greater one's nobility, the more obligated they become to act according to the common good instead of their own interests. Marinella shows that what men have confused with weakness is actually nobility and godliness.
The irony of power
True power doesn't need to flaunt itself. True power comes with the ability to focus on the needs of those you love instead of being limited by the self. Therefore, according to Marinella's depiction, men are weaker than women en masse, because women are naturally forced to understand the value of love because they sacrifice in child-bearing.