I'd argue that if black feminism didn't exist there would still be womanism, and whether there was a term for black feminism/womanism or not black women would still be fighting for their rights as human beings. Feminism is overwhelmingly white-centered, however consider before the suffrage (white women fighting for white womens rights, and ignoring the rights of women of colour) black women were still fighting for their rights to exist and to their freedom - white feminism is a small island in a sea of history of women fighting for their rights to be treated as equals.