Identify the reasons why slavery in the United States made the ""nuclear family"" a less viable ideal for black families.

Forced separations of spouses, siblings, and parents from children.

Explanation:

Slavery meant that the parents could not guarantee that they can support their children or can safeguard their children. This was because of the forced separations of spouses, siblings, and parents from children and often it was the extended families of the people that looked after the children after the parents or one of the spouse were take into slavery. Hence, giving rise to a closely knit extended family structure among the black people of the United States.