Slavery really widespread among the populations in the south in that only 3% of southerners even owned slaves.
*Was NOT widedpread
A three percent who had wives and children. Just prior to the rebellion almost half the families in states like Mississippi and South Carolina had slaves. So slavery was way more wide-spread in the south and the cornerstone of their society to an extent Southern apologists like to admit.
But that fact is also completely irrelevant to the question of whether reparations will do any good and whether they will solve any problems. They won't.