What policy of the union army did Frederick Douglas consider foolish after the defeat at manassas?

Frederick Douglass considered the Union Army's policy of not enlisting Black soldiers after the defeat at Manassas to be foolish. He believed that allowing African Americans to fight for their freedom would not only bolster the Union's ranks but also serve as a powerful statement against slavery. Douglass argued that Black men were willing to fight and die for their country and that their inclusion would strengthen the moral and military position of the Union. His advocacy ultimately contributed to the eventual decision to enlist Black troops, significantly impacting the war effort.