Final answer:
Douglass advocated for immediate action and prioritization of Black men's suffrage, whereas Stanton and Mott focused on women's rights and equality.
Step-by-step explanation:
In comparing the purpose of Douglass's writings to that of Stanton and Mott, Douglass is seen as advocating for immediate action and prioritizing Black men's suffrage, as it was a matter of 'urgent necessity' for their safety and rights. On the other hand, Stanton and Mott's efforts, especially through the Seneca Falls Convention, were focused on advancing women's rights and achieving equality, including the controversial right to vote for women. The key difference lies in the immediacy and focus of their respective advocacies.