Have you tried to socialize with your sister? Have you or your father discussed her rights with her? A woman who knows she’s special and valuable and in charge of her own life, is much less likely to fall for an idiot “chad”. If all she thinks she is, is a future trophy wife, if all she hears from you and your dad is that women are just fuck-dolls; she might not value herself, and just wants to get it over with.
There is more to sex than “creampie”, whatever that is. The good ones involve love, affection, attraction, not just sex.
You EXIST because your mom “let” your dad “creampie” her, dearie.
Yeah, Big Black C**k is probably it. Women are often empathetic and think all people should have equal rights, and blacks shouldn’t be discriminated against. That just means we want BBC, apparently. At least in the minds of those who ONLY think of sex.