In paragraph 13 of his writings, when Dr. Martin Luther King Jr. refers to segregation as a "disease," he employs this metaphor to highlight the harmful and pervasive nature of racial segregation in society. By characterizing segregation as a disease, he underscores its detrimental effects on both individuals and communities, suggesting that it corrupts moral values, erodes social cohesion, and perpetuates injustice.
King aims to convey the urgency of addressing and treating this "disease" through moral and social change. Just as a disease requires a cure and active intervention, he implies that segregation demands collective action and a movement towards justice for true healing to occur. This metaphor serves to mobilize his audience to recognize the seriousness of racial discrimination and to inspire them to work towards a more equitable and just society. Through this vivid imagery, King emphasizes that segregation is not just a legal or political issue, but a deep moral failing that calls for immediate attention and remedy.