Sudanese militias have full agency in choosing to use that identity model. They are the ones racializing the categories now. But the framework they are using did not exist in ancient systems where identity could shift through marriage, culture, language, or allegiance. So yes, there is a distinction between ancient identity violence and modern ethnic cleansing, and pointing that out does not require attributing virtue or guilt to Europeans as individuals.
Anyway, I gave you an emotional off-ramp by chalking your defensive reaction up to you identifying Europeans with whiteness (which again, doesn't exist). I still think that played a role, because nothing else explains how strongly you reacted to my original comment, which I admit was not worded clearly. And that defensive reaction basically boiled down to “well, everyone else did it,” which is a historically debunked line European historians have repeated for years to minimize the uniqueness of modern identity-based violence.