I don't know enough about the subject, but I will say that arguing on the basis of the purported reasons for creating a movement is totally irrelevant to the movement's effects.

For example a white friend in South Africa has a daughter who years ago, when looking at university applications, was distraught because to study to be a doctor she had to hit over 90% in her exams, vs 70% for her black South African classmates. Does it matter to her that this wasn't meant to happen? Or is reality also worth talking about?