Why did some people accuse the Nation of Islam of reverse racism?

The Nation of Islam wanted to start a black nation with a separate goverment, as it believed that whites were intent to keep blacks poor and powerless.

The Nation of Islam made a number of arguments that are racist toward Whites. Some examples include:

• Calling the "White Man" the devil and an artificial creation of a Satanic Warlock
• Supporting Black Supremacy
• Denying historical contributions of White Men who do not fit the Nation of Islam's historical narrative of Black Repression
• "Metaphorically" advocating for the murder of "White Devils".