At it's peak less than 4% of Rhodesia population was white. Less than 8% of South Africa is white. Was apartheid and other policies morally justified? Because t

At it's peak less than 4% of Rhodesia population was white. Less than 8% of South Africa is white. Was apartheid and other policies morally justified? Because those there at the time certainly felt so (otherwise they wouldn't). This isn't evolution but evil taking form.