Most people speak of slavery in such an extremely narrow way.
One of those slivers, spoken of as if it is an entirety, is that slavery applies to black slaves.
The fact that slavery is not the same as slavery, is well known, but not known by the unwell.
Slavery administered by white folks is chattel slavery, the most vicious and brutal by a longshot.
In contrast, slavery administered by black folks was not dehumanizing. It was only for a set number of years, such as seven. The children did not become slaves. The slaves were not stripped of their names, language and other cultural aspects.