Oes 20th/21st century american literature reflect or shape culture

Use the following for sources:

Huckelberry Finn by Mark Twain
The outcast of poker flats by Bret Harte
The Jolly Corner by Henry James
The Awakening by Kate Chopin
The revolt of mother by Mary Wilkins Freeman
Up from Slavery by Booker T washington
The wife of His Youth by Charles Chestnut
Under the Lions Paw by Hamlin Garland
The souls of Black folk (forethought, I, III, XIV) WEB dubois)
Mending Wall by Robert Frost
Journey of the Magi by T.S. Eliot
USA (the Big Money-newsreel,camera eye, mary french) by john Dos Passos
invisible man(prologue, chpt 1 battle royale) by Ralph Ellison
The life You sabe May be Your own by Flannery OConner
Time to Go by stephen Dixon
Entropy by Thomas pynchon
Everyday use by Alice Walker

Paper needs to suggest that literature contains both elements of reflection and shaping of culture

Thesis should focus on that idea