Ang Tatay Kong Nanay offers a pioneering and empathetic portrayal of a gay man as a loving and dignified adoptive father. The film challenges societal prejudices by affirming the validity of his identity and his profound capacity for parenthood, making a significant statement against traditional norms.

The film offers a largely positive portrayal of a character who embodies a maternal role despite being male, challenging traditional gender norms. Diosdado is depicted with dignity, love, and resilience as he navigates societal prejudice to raise his adopted son, affirming the worth of his non-traditional identity and love.

The film implicitly critiques the rigid societal norms and judgments, often rooted in conservative Christian morality, that create hardship and prejudice for the protagonist, a gay man raising an adopted child. The narrative positions these religiously-informed societal attitudes as problematic and a source of oppression, without offering significant counterbalancing positive portrayals of the institution's role in this specific context.