Listen man, it's literally impossible to determine this factor. Why? Because unless you survey literally every single black man who dates interracially in America, you will never really know the answer. To even get into the whole dynamics when there is little to no research behind it besides some opinionated sociologist is literally futile. Thus, the question cannot be answered.
With that said, just because BM doesn't like BW does not mean they have self hate. There are many BM who simply do not find BW attractive, nothing wrong with that. Is it self hate for WW to only find BM attractive? Of course not, primary this aspect is given due to the rather racist individuals who despise BM/WF relationships, this is why many were suggesting to stay away from the posters comment, because this is an unoriginal and common tactic seen by BF and some BM who distest IR relationships.
Thus, expect not to receive much feedback regarding this.