It could be all of the above. I no longer desire your company. I would use the latter. In the United States, since there are so few words that are universally understood, it only makes sense to use the ones that everyone does understand. In one word, a person can communicate what would otherwise take seven.
Swear words are able to compress messages into fewer words and still keep the basic meaning.
Think of swearing as verbal digital compression. What makes a word a swear word is the cultural connotations and inferences, not the actual meaning of the word. But to someone who raises dogs to show, bitch is the proper and technical word for a female dog. These are professional people, conducting business. They are neither ill-mannered, nor unintelligent.