The counterclaim against Taney's argument in the Dred Scott v. Sandford case is that Black people should be considered citizens because their ancestors were forcibly brought to America.
The best counterclaim to the claim in Taney's passage from the opinion of the court in Dred Scott v. Sandford is that his argument that Blacks were not citizens is false because their ancestors were forced to come here.
This counterclaim challenges Taney's assertion by highlighting the historical context of how Black people were brought to America against their will, which contradicts Taney's argument.
Furthermore, it emphasizes the inherent injustice in denying citizenship to a group of people based on their forced migration history.