Final answer:
Douglas's views on Americans of African descent, based on the document, can be considered critical as he and others were vocal advocates for the rights and inclusion of nonwhite individuals in American society.
Step-by-step explanation:
Based on the document provided, Douglas's views on Americans of African descent are critical. He challenges Americans to consider how their wealth and national character are intertwined with diversity, specifically mentioning the discriminatory practices faced by not just African Americans, but also Chinese immigrants and other nonwhite migrants. Prominent figures like Frederick Douglass, Sojourner Truth, Charles Sumner, and Martin Delany were vocal about the rights of nonwhites, denouncing the segregation and second-class citizenship imposed on them. In his time, Frederick Douglass, along with others, also pushed for the extension of citizenship rights to nonwhite immigrants and Native Americans.
Learn more about Douglas's views on race here: