Perhaps andy11 will give you some examples of slaves that enjoyed their slavery. Or some slave owners that were so 'uncruel' they willingly liberated their slaves, and started paying them a wage.
From fast facts to black inferiority: how slavery has been portrayed historically in textbooks
The Hazen’s textbook (published 1903) framed Jamestown and its role in the development of US slavery as an inevitable matter of labor demand and economic pragmatism, a common argument in US school materials at the turn of the 20th century.
Yet that was just one school of thought. After slavery’s end in this country, many Southern-focused textbooks promoted a Lost Cause approach to Jamestown and slavery writ large, portraying the institution as part of a natural order. White Southerners created ideologically driven narratives that yearned for the Good Ole Days where whites sat atop the hierarchy and African Americans were faithful slaves. In this racist revisionism, they didn’t have to reckon with the new black citizen, voter, or legislator as nominal equals.
Somewhat typical in this distorted history was
A Child’s History of North Carolina, circa 1916, which also focused on slavery’s profitability and erased its violence. In this view, the enslaved people were happy, and Southern slave owners were reluctant masters at best.
According to the book, enslaved people “were allowed all the freedom they seemed to want, and were given the privilege of visiting other plantations when they chose to do so. All that was required of them was to be in place when work time came. At the holiday season they were almost as free as their masters.” Moreover, “most people in North Carolina were really opposed to slavery and were in favor of a gradual emancipation. Slavery was already in existence, however, through no fault of theirs. They had the slaves and had to manage as best they could the problem of what to do with them.”
https://www.vox.com/identities/2019/8/26/20829771/slavery-textbooks-history