Who You Callin A Bitch?

Can someone please explain this to me? I’m seeing it everywhere, but I don’t get it: Women who identify themselves, and people they purportedly like, as "bitches."
Main Entry: bitch
1: the female of the dog or some other carnivorous mammals
2 a: a lewd or immoral woman b: a malicious, spiteful, or overbearing woman —sometimes used as a generalized term of abuse
3: something that is extremely difficult, objectionable, or unpleasant
4: complaint
Bitch is a term for the female of a canine species in general. It is also frequently used as a term for a malicious, spiteful, domineering, intrusive, or unpleasant person, especially a woman. This second meaning has been in use since around 1400. When used to describe a male, it may also confer the meaning of “subordinate”, especially to another male, as in prison. Generally, this term is used to indicate that the person is acting outside the confines of their gender roles, such as when women are assertive or aggressive, or when men are passive or servile. More recent variants of bitch are bitchy, ill-tempered (1925), and to bitch, to complain (1930).

The word “bitch” has long been in use to refer to a woman in contempt, as shown in an 1811 dictionary which describes bitch as “the most offensive appellation that can be given to aSo why would a woman call herself “bitch,” refer to her friends as “my bitches,” or ever let a man call her “his bitch”? Evidently it’s an effect of “third-wave feminism” and a movement toward reclaiming derogatory and pejorative terms:n English woman, even more provoking than that of whore.”
Third-wave feminists believe it is better to change the meaning of a sexist word than to censor it from speech.

Many of these words did not originally have their modern connotations of power. For example, the English word cunt, which is commonly used as a pejorative, is a derivative of the Germanic word “kunton” meaning “female genitalia.” Over time the word has become both a pejorative and a marker of femininity. The words bitch and whore developed in a similar fashion.
You can talk to me about reclaiming words until you’re blue in the face and I still don’t buy it.
How about teaching people respect instead? How about not demeaning your fellow women by using offensive terms “to empower them”?
Feminist Response to Pop Culture,” together seem to imply that opinions of any sort other than “I like baking and raising babies, I do declare” are equal to bitchiness.

Why do we need to hide behind the label of “bitch” to feel okay with expressing opinions — or to slap it on others to make them feel like they shouldn’t express theirs? When are we going to stop being “bitches” and just be women?