cunt vs. nigger

I've long thought that people who object to genital-based insults for women should not use genital-based insults for men. I mentioned this to a female friend, who said "cunt" was the most insulting word in English and that, unlike penis-inspired insults, it's never complementary. To which I noted that all of the penis-inspired insults continue to be fighting words. The difference between "cunt" and words like "dickhead" is one of degree, not kind. Arguing that it's okay to use one and not the...