NOI is seeking a way to ennoble folks and connect with Islam at large. I’m no expert but can question NOI’s ties or support with Sudanese President Omar al-Bashir because it looks like we have persisting enslavement of Africans in Sudan. Jews aside, does Min. Farrakhan outright condemn this atrocity?
If you are genuinely seeking the truth then take the time to understand what's going on and what respective parties positions actually are and not what you think they are. The NOI is not "tied" to the Sudanese President has repeated like condemned all manners of violence and injustice all over Africa.
What the NOI (and well informed groups, institutions and individuals of various backgrounds) does NOT do is play into sensationalist claims that are repeated by individuals who have no interest in the subject or are seeking to create an atmosphere where the situation can be further exploited (ie involving the UN under R2P).
This assumes that you're genuine in your quest for truth, and not a person posting material to continue a cloud of suspicion. Invoking a long DEBUNKED myth about Malcolm X doesn't help your case.