And while we're at it, neither did Native Americans. And we enslaved them far longer than we enslaved black people:
This practice continued throughout the colonial era aided and encouraged by Native American tribes themselves up through 1750 and, after the American War of Independence (1775-1783), natives were pushed into the interior as African slavery became more lucrative. Even so, the enslavement of Native Americans continued even after slavery was abolished by the 13th Amendment to the Constitution in 1865. Americans got around illegal enslavement of natives by calling it by other names and justified it in the interests of "civilizing the savages". The practice continued up through 1900, dramatically impacting Native American cultures, languages, and development.
And while we're at it, neither did Native Americans. And we enslaved them far longer than we enslaved black people:
https://www.worldhistory.org/article/1742/native-american-enslavement-in-colonial-america/
Guess how much of that they teach in U.S. schools?
Judge: "Mr. Jones, you can't own slaves. It's literally in the Constitution.
Jones: Your Honor, I'm just civilizing the savages. They need our guidance as they make their way into modernity."
Judge: "Oh, that's permissible. The Constitution doesn't say anything about the benevolent guidance of savages for our benefit. Carry on."