On the whole, Violet's comments about race and difference illustrate that her understanding of race and racism, while rudimentary or absent, isn't malicious: she's just curious, but that curiosity can end up seeming extremely rude. Violet is able to think this way in part because she's white and affluent; she lives in a wealthy white neighborhood (the same one Ruth lives in) and per Ruth's implications, there's very little diversity there. Her affluence, in other words, can lead to ignorance and then rudeness.