I guess to me bitch will always mean someone who is cruel, mean, and vindictive. Someone who doesn’t care if they hurt people as long as they get what they want. Gender doesn’t factor in it. Therefore, yeah Sally is a bitch, so is Anderson. :/
And it’s not that I don’t get that, or see where it’s coming from—I do! But because of the history/connotations/meaning of the word, I have a hard time with it in this context. You want to say Sally is cruel, mean and vindictive? Fine! I am not sure I agree, necessarily, but I don’t have to. But if we can try to avoid terms that are, in context, gendered (Merriam Webster defines bitch as female dog first and “a lewd or immoral woman; malicious, spiteful, or overbearing woman—sometimes used as a generalized term of abuse,” second, so there is no question it can be used the way you’re using it, and also no question that it is, primarily, a gendered insult) and have a specific gendered meaning—like, in general, actually—I think that would be a good thing, you know?