Final answer:
The objective style of Frederick Douglass's narrative adds power by vividly portraying the dehumanizing effects of slavery through plain facts rather than emotive language, allowing readers to deeply feel the weight of the inhumanity presented.
Step-by-step explanation:
The objective style of the excerpt from Frederick Douglass's autobiography Narrative of the Life of Frederick Douglass, an American Slave, adds power to the narrative because it demonstrates the desensitization and detachment caused by the brutality of slavery. By stating facts plainly without overt emotional language, Douglass conveys the stark reality of how the system of slavery strips away personal connections and familial bonds, as seen in the separation from his mother and siblings. The lack of bias in the storytelling makes the impact of these experiences more profound, as it invites readers to fill in the emotional gaps and deeply consider the inhumanity of slavery.