Well done with the Wikipedia search. But why you describe an unpleasant person with a derogatory word for the vulva? Because we are living in a misogynistic society. Reproducing these expressions does not help to overcome this misogyny. Language changes thinking.
We describe unpleasant people by calling them dicks too 🤷🏻♂️ I get what you’re saying, but I’m not calling her that because I hate women. I’m calling her that because she’s a horrible human being.
You use this misogynstic word cause we live in a misogynistic society. "Dick" shouldn't also be used but the term is far removed from the drastic nature of the intensity of the insult, as is the case with c**t. And that is the case in many languages around the world.