Many know about the enslavement of other Africans at the hands of Somalis but they don't hate us the same way as cadaanka because we don't hold that same power over them. We don't currently systematically oppress them, in fact, when we go to European and Arab countries we face the same discrimination they do. Nah, they have decided to pick their battles. Right now a united Africa/ All Black movement is preferred to them rather than splitting hairs over something Somalis did all those years ago.
They deserve reparations and an apology one day, though. Knowing Somalis, that day may never come.