Answer:
The author's description of dogs as "syphilitic" and humans as "tubercular/masters" emphasizes the unnatural feeling urbanization and industry has brought, which serves to negate the imagination of the modern world as an idyllic wildlife landscape by the author.
Step-by-step explanation:
The poem Walking Down Park by Nikki Giovanni portrays a speaker who re-imagines the modern world as an idyllic wildlife landscape, an imagination disrupted by the fact that industrialization has taken over the natural scene and brought disease and discomfort with it.