@Junpaku
What do you mean crafted. Retarded is a word that was used by doctors as an official diagnosis. Much like stupid, idiot, moron etc.
Like the other dude said the only reason people are sensitive to it is because it’s still a recent word. It much like the rest will eventually become a normal word used to insult someone.
Unless you consider diagnosing someone an attack, I don’t know what you mean by that.