Final answer:
Lost Generation writers were influenced by the rejection of traditional White American ideas and expressed their hopelessness and despair by criticizing the middle class in their work.
Step-by-step explanation:
The Lost Generation writers, such as Gertrude Stein and F. Scott Fitzgerald, were influenced by the rejection of traditional White American ideas.
They felt alienated from society and expressed their hopelessness and despair by criticizing the middle class in their work.
Many of them lived an expatriate life in Paris, Rome, or Berlin.