Final answer:
Arthur Lee, coming from a Virginia slaveholding family, became a critic of slavery, emphasizing the universal right to freedom. Quakers like Woolman and Benezet, in spite of their community's practices, spoke out against slavery on religious grounds. Figures like Anderson and Douglass, though from different backgrounds, condemned the detrimental impact of slavery on families.
Step-by-step explanation:
Among those who grew up in a slaveholding family and later became against slavery, one noteworthy individual is Arthur Lee of Virginia, who argued for the inherent freedom of all humans, regardless of race. Others, such as Quakers like John Woolman and Anthony Benezet, also grew up in communities where slavery was practiced but strongly advocated against it from a religious perspective. Moreover, Anderson, a devout Christian, along with Frederick Douglass who had escaped enslavement, both wrote narratives condemning slavery for undermining the family unit. Additionally, certain members of the middle class and northern business elites, who initially had a financial interest in the slavery-based economy, later began to view the institution with ambivalence or outright disapproval.