Final answer:
According to Wheatley, people who view "Negroes" with scorn see their skin color as a negative dye.
Step-by-step explanation:
According to Wheatley, those who view "Negroes" with a "scornful eye" see their skin color as "a dye." This means that people who hold prejudice against Black individuals perceive their skin color as something negative or undesirable. Wheatley uses the metaphor of skin color being like a dye to illustrate how deeply ingrained and pervasive this prejudice is.
This prejudice is built upon a distorted interpretation of biblical narratives, such as the story of Cain, wrongly associated with black skin, as well as baseless claims that equate darker skin tones with barbarism and impurity. Conversely, the resilience and strength of the Black community in the face of such relentless disdain are highlighted as they continue to struggle against and rise above these pernicious attitudes.