This is less true in digital photography, given the level of control over post processing one has. However, the end result is the same: it take more effort to produce a faithful photo of a black person than a white person, for reasons completely out of the control of either the photographer or the subject.
That is all that is meant by the statement I made. Indeed, it is literally the entire content of the statement I made. I would defy you to quote where I blamed black people, or even implied there was even anything any black person could do about this unfortunate reality.
Edit: Incidentally, literally everything I've said here about the difficulties of faithfully photographing people applies to darker skinned people of any ethnicity, such as Indians or Afro-Arab people. None of this is racist in the sense that it implies anyone is lesser than anyone else, just that that's the way current technology works.
There is a deeply prevailing western misconception that systems that work for white people should also work for everyone else. When it invariably doesn't, it's always the fault of the minority. Funny how that is.