I'm not gonna spend time linking sources/books you could easily find yourself either online or at the library. Regardless of the most spoken language in Sudan, almost every Nubian speaks the native language and most Nubians can't even speak Arabic until starting primary school so again, your rape theory is invalid. Stop glorifying Arab settlers, they were impoverished and desperate immigrants.
Arab immigrants failed to Islamize/Arabize Sudan, it was the Mahdists that made Sudan a Muslim majority country! Hence why I referenced the late 1800s conversion to Islam from Christianity, please read slowly and process my information before replying with irrelevant statistics you've already posted 50 times.
Are you saying before the Mahdists, most Sudanese weren't even Muslim?
Also Nubians and Arab Sudanese have large amounts of Arab Y DNA and native MtDNA because the Arabs were invaders not migrants. Migrants bring their wives and children along with them. It's why for, instance, Somalis have a mixed bag of MtDNA. The Eurasian/non-african ancestors brought women with them into Africa too.
But I would not say Sudanese Arabs and Nubians are the result of rape, that is not a nice thing to say. You can't rape such huge amounts of people anyway, that would be impossible. Even Genghis Khan can't recreate most of the Sudanese population.