Because that’s what textbooks are teaching children:
Of course, this was found in a Texas textbook, but the book is used throughout the country:
In a section titled “Patterns of Immigration,” a speech bubble pointing to a U.S. map read: “The Atlantic Slave Trade between the 1500s and 1800s brought millions of workers from Africa to the southern United States to work on agricultural plantations.” …
One parent posted the atrocity to Facebook:
In calling slaves “workers” and their move to the United States “immigration,” she noted in viral Facebook posts Wednesday and Thursday, the textbook suggests not only that her African American ancestors arrived on the continent willingly, but also that they were compensated for their labor.
Immigration? Workers? How about “Kidnapped millions who were crammed in horrid conditions on a boat across the ocean.” And “sold into slavery”?