Peter (fl.โ1863) (also known as Gordon, or "Whipped Peter", or "Poor Peter") was an escaped American slave who was the subject of photographs documenting the extensive keloid scarring of his back from whippings received in slavery. The "scourged back" photo became one of the most widely circulated photos of the abolitionist movement during the American Civil War and remains one of the most notable photos of the 19th-century United States.
I see your point about what some people may think about what he has said.
No one is forcing anyone to confront the horrors of slavery, what is happening here is they are trying to erase it. You literally have to go to a museum and look in the specific section about slavery to see a watered down version of what happened. Even this apparently is too much though.
So while he may be whitewashing the debate with statements like we focus too much on slavery being bad (which we don't and also it was very bad) the reality is the administration is busy erasing history by using its clout to remove historical references to minorities and women.