You are trying EXTRA hard to imply that anyone who doesn't like brown hair on Lizzie is racist. Nah. It just doesn't look good on Lizzie (and often, in general on the comic book page)--perhaps because of her style of hair, perhaps because of the failure to make the color more dynamic--especially in comparison to the other colors she's wearing, which, in my opinion, clash but don't complement.
Brown hair, however, looks AMAZING on Vixen on the page. Because the colorists gave it dimension and it complements the color palette of her uniform.
Reiterating that I'm talking about hair NOT skin.