They do, all over the gd internet! In this one instance, son was well within his rights. Gallows humor bc, if you don't recall, they sold us too. If anybody has the right, it's us. Furthermore, they been selling each other for like 5000 yrs atp, why can't we call a thing a thing? Forget whether you're consistent or not, are they? Are they not repeating 'white nationalist' talking points about us? Just sniggling and giggling with the wm at work about stereotypes based on the last 50 yrs, not 5000. This is one of their perennial problems and, possibly, a major reason why they can't get it together. How can you in a society where og slavery is still on the table for you?
All that out the way, it's possible that you don't understand: the anger exhibited toward the perpetrator is representative of our degree of empathy, and sympathy, for the victim. Its basically what happened to us. I promise you, we're also disgusted by the Libyan slave trade because we empathize. Care about the victim, excoriate the slave traders.
I used charts and graphs and economic data to reach this conclusion, 'egghead' shyt. I don't make political, socio-economic arguments on vibes. You should try it. (Do yall even have black immigrants in TN to speak on their effects on the local economy???)