Answer:
The main argument is that it is un-American to continue to promote slavery.
Explanation:
Written in the original Declaration of Independence and one of the causes of the War of Independence was the belief that all men are created equal. The people of America were denouncing a king’s right to rule as their birthright and aimed for each person to have the freedoms to allow them to prosper under their successes and not always remain subject to the British crown. This passage suggests that these values should apply to slaves at that time. Many who believed in the ideas behind the formation of the United States should also see the sense in abolishing slavery.