A quick check of Wiki shows it to be a fashion item. It makes no mention of slavery. He looks like a tool and there is no reason to think that he isnt one.Without swinging the thread off kilter, I don’t think there was any intended racial undertones/overtones at all. I understand you might have a strong cultural attachment to the item, my son is currently wearing one to help grow his hair in a certain way! but in accusing somebody of racism you should ensure firstly they are being racist. The education you have just afforded 90% of the people on here is invaluable (and the best way forward) if you’d left it at that I’m sure he would’ve apologised & expressed a lack of knowledge, to the older crowd that is just a pair of stockings
No apology needed from anyone.