Originally part of this review:

White people enslaved each other: the Vikings enslaved northern Europeans and sold them in Bristol and Dublin, where they were re-sold in a system where slavery was inherited. This was so common that in the 11th century, one out of every 10 residents of Britian was a slave, and the Catholic church owned many white slaves. White male slaves were often castrated to be sold as eunuchs. The Virginia Company contracted with London to sell white street children as field labor (where they mostly died within a few years), and these were the first slaves in what would become the U.S. Poor white women were sold as 'wives.'

White people enslaved each other including their own children, yet no one argues that white people brought it upon themselves and should have stuck together. White slavery is not mentioned because it proves that there is no single narrative of slavery, and it doesn't allow for the continued myth of white people as natural 'leaders.'