In "I Know why the caged Bird Sings," how does Marguerite's reaction to oppression differ from the reaction of the caged bird?

The reaction of the central character in I Know Why the Caged Bird sings is to do with the refusal to accept racism and sexual violence that is part of the oppression inherent in US society at the time and the title suggests that the caged bird is trying to get free but in the meantime sings to make the best of the situation.