According to this text, how does David Walker challenge America?

David walker challenges equal rights, racism, and effects of slavery in America.

Explanation:

Around 19th century, David Walker targets the American Colonization Society challenging the issues of racism. He fought for the rights of the people and according to his text, he portrays the ill treatment and racial discrimination that is aimed over the black people.

He challenges America stating the blacks weren't inferior and should be treated with humanity. David Walker challenges equal rights, racism and effects of slavery in America. He wrote the text Appeal challenging the country to bring a change in the society about the opinions towards black. He wrote the rise of Black men and women fighting for their equal rights and raising the effects of slavery.