Arguing with them is not the same as growing up with them. Not the same as you staying at one of their houses when you have no place else to go. Not the same as them feeding you when you're hungry. Not the same as them spotting you so clothes to go back to school with because your mom was too poor to buy you any.
You need to stop making assumptions, or at least learn to ask more questions before going off in a response. I'm not talking about arguing with random NOI members on the street. I'm talking child hood friends, coworkers, uncles, and cousins, both currently in and formerly members. While I myself was never a member, I know more than I've ever wanted to about the organization due to this.
I don't appreciate that you're generalizing the NOI as some organization with crazy conspiracy theories that hate white people. Fact is without that organization I don't know where or who I would be today. I wouldn't be able to love being black without them. Yes I even said it before in this thread, that some of them do believe in the things you noted which is very problematic. The thing is those beliefs are unfortunate consequences of racism, that a black man would have to rewrite the worlds history just to feel like he belongs in it.
The original discussion was "can black people be racists". In which a couple of posters, yourself included, try to say that it was impossible for black people to be racist. I mentioned the NOI/Black Hebrew examples because, yes, they believe in racist things. You're correct that these beliefs are a consequence of racism in the US. But my example still stands against those who say/want to suggest that black people are some how "physically incapable" of being racist.
Of course I recognize that the NOI, like any religious organization, do good things too. That's how they get so many members to begin with, because of their teaching of black empowerment and "positive" teachings from the Quran prior to teaching you about the crazy theories.
And the people in the organization are not evil people (family, friends, etc...), just misguided due to these core beliefs of white people being evil and focusing on separation from white people vs improving the situation between ethnic groups.
But, I will not hesitate to call a crazy conspiracy theory crazy to spare someone's feelings. Especially when it is, as you yourself said, problematic to the people believing in it. If that makes the NOI look crazy by association, oh well.