I am a genealogy nut so have done a lot of family research. My ancestors on all lines have been in this country (primarily In in the South) since Revolutionary War times. Slavery was custom/tradition in early times and if there was money and need, they participated, I'm sure. However, most of my lines did not have money and there was a large segment that leaned toward Quakerism. That was a shameful period for our country but history worldwide is full of shameful periods. I feel no family shame for their actions then.
Lincoln and the Civil War brought an end to the legality of slavery but in no way ended the practice. It was just called something else. When I graduated high school in 1951, there was absolute segregation of school and public facilities. "Separate but equal" became the law of the land. The separate was strictly enforced but the 'equal' never existed.
I never saw the insides of the black schools in my town; the outsides as I recall were acceptable but old and shabby. However in a nearby county, schools for the blacks were deplorable shacks with outside facilities while whites enjoyed clean, comfortable modern facilities.
When ordered by the court to integrate in 1959, Prince Edward County VA instead closed the entire school system. Private schools were created for the whites which were supported by tuition grants from the state and tax credits from the county. The blacks (and disadvantaged whites) had no school to go to. Prince Edward was not a backward county, it housed one of the better colleges for teachers at the time. It was just southern.
Either I was not aware of this at the time or did not remember. Reading the book, "Something Must Be Done About Prince Edward County" by Kristen Green 2015 made me deeply ashamed to be a Virginian because it happened in my lifetime. So no, we no longer have slavery but the effects of it and our continuing racism still harm the country.
People harmed by the "separate but 'NOT' equal" era are still around and may be contributing to the current racial chaos. Who could blame them.