Explanation:
Baldwin talks of a "disease" which afflicts black Americans and can wreck race relations and creating a "rage in the blood" so he is using the "disease" as a metaphor for probably the rage that black Americans have for experiencing the inequalities of life in the US especially in the 1960's when the civil rights movement was so strong and segregation was so strongly practiced in the South still.
An all-knowing narrator makes no judgments or evaluations in presenting his or her point of view. This narrator can actually tell everything about all the characters inner feelings, motivations and even aspirations. It seems to be that an omniscient narrator is a narrator who seems to know everything and everybody in the story.
Hey there, IllusionNote1!
The definition of jagged is 'having rough, sharp points protruding,' so jagged is not the answer.
The definition of draconian is 'excessively harsh and severe,' so that could possibly be it.
Insanely mean is not formal.
Crazy hard is not formal.
Your best bet is draconian.