I believe “satisfyingly” would work, the definition of satisfyingly is: “in a way that gives fulfillment or the pleasure associated with this.” The definition of “proudly” is: “with a feeling of deep pleasure or satisfaction in one's own achievements, qualities, or possessions or those of someone with whom one is closely associated.” The word satisfy is used in the definition so I believe they are similar!
The best sentence that shows the lack of interest of white Americans in the lives of African Americans and other minorities is “They shy away from romantic stories about Negroes and Jews because they feel that they know the public indifference to such works, unless the story or play involves racial tension.”
In this sentence of the excerpt we can infer publishing houses will not sponsor books or publications based on stories about minorities and black people because the public is not interested in those stories and would not buy books related to topics that have minorities as main characters.
The root of the word inflexible is flex, which means that affixes are everything that is added to this root.
Having this in mind, there are two affixes here: a prefix in- and a suffix -ible. ENGLISH WOOP WOOP Hope this helped
