You seem to think that islam is about arabs,when it is not. I agree that africans should abadon islam,and my grandmother being coptic from egypt was forced to convert toislam and my family,but islam is not about arabs. matter of fact allah the single deity that muslims whorship is actually from allat a sabean moon godess.
mucvh of islam is based on pre islamic arabian paganism,which came formthe sabeans.
I was raised a muslim,but ichose formyself to just be spirtual and to ditch christainty and islam.

Yes, during the eastern slave trade many arabs castrated black slaves,but they also did this to slavic slaves which also consitued a great majority of the slaves.