Islam is no an originally Black faith not more than Christianity. Arabs are not Black. Muslims practiced slavery against Blacks even more and worse than Whites. Many Arab intellectuals wrote about inferiority of Blacks. For example Ibn Khaldun in the 14th century compared Black people to animals and he's not the only one.
sharehttps://youtu.be/TW46xDXNO3Q
Seems like many races compare blacks to either savages or animals or forms of apes. Maybe there is some truth to it because they keep getting exploited to heck in Africa be it colonial times or currently China for resource mining that benefits those companies the most and not the people. Then you got a bunch of dictators running things over there. Africa is one of the most resource rich places on Earth yet the countries there aren't seeing much benefits for it. You'd think the Africans would've used this to their advantage to build a Wakanda-like society by now but they seem to always keep selling out to foreign companies or get influenced by corrupt money.
Very tribal over there as well. Might explain why the rest of races migrated away from there to form more advanced societies. There is also the fact that many of the inner nations had it rough since they didn't really have access to nearby ocean or river.
As for Black and Islam, yeah, dunno, they're close to Northern Africa so maybe that's where the influence comes from?
Black Muslims circa 1960 were far more likely to be reading Message to the Blackman in America by Elijah Muhammad than anything by Ibn Khaldun.
In other words, Islam mostly came to black Americans in the form of groups like the Moorish Science Temple, the Nation of Islam, the Five Percenters, etc., who had their own "unorthodox" beliefs and black-centered spin on the religion.
As for mainstream Muslims, they tend to play up the "universal" aspects of Islam and the fact that Muhammad freed a black slave named Bilal who became one of his most important associates. Of course, in reality, Muhammad's attitude toward slavery (and the practices of Islamic rulers and traders throughout the centuries) don't live up to the sanitized image, but that doesn't necessarily stop Africans from identifying with Islam any more than it stops them from identifying with Christianity (whose followers generally stress a similarly "universal" message despite centuries of theological justifications for slavery.)
Politics also played a part. There was a particularly strong effort in the 1960s-70s to promote pride in black culture, and Islam was seen as not only in some sense at odds with existing American society but led to black converts replacing their "slave names" with new ones (hence why Malcolm Little ended up by the end of his life known as el-Hajj Malik el-Shabazz.)