Final answer:
Replacing 'white' and 'black' with 'umber' and 'sienna' in 'Unwind' could help diminish racial bias, but alone, is not enough to eradicate racism, which requires systemic change and active involvement from all community members, including white allies.
Step-by-step explanation:
In the novel Unwind, the society's decision to replace racial labels such as 'white' and 'black' with 'umber' and 'sienna' is an attempt to detach from the charged connotations those colors carry due to historical context. This could potentially reduce racial bias by shifting the focus away from the entrenched associations derived from the colors black and white, as historic descriptions of race often carry negative and positive stereotypes respectively. However, merely changing terms does not address the deep-rooted issues of racism, as it is not the terms themselves that cause racism but the social, economic, and political systems that perpetuate racial inequality. These systems propagate cultural biases and discrimination. Eradicating racism would require a systematic approach that includes education, policy reform, as well as active participation from all members of society, especially from those who have traditionally held power. The inclusion of white allies who "get it" and support anti-racism movements is crucial, as is the unlearning of deep-rooted racial preconceptions.