There are insults that I feel like are moralistic, majority seem linked to non-marital sex but the root overall is trying to shame someone for sexual activity that “should” be shameful. From majorly aimed at women like removed, slut, etc, to homophobic insults, and even some more neutral like bastard… I don’t feel like people talk about bastard enough, like, you are trying to shame that person for their mother not being married? Like, single mothers = bad? However, when someone says something really dumb, and you try to come up with an insult to his intelligence, I think inevitably someone will try to link to people who are mentally impaired. Even the word “dumb” here, it was used for people with speech impairment, and people believed they couldn’t talk because they were mentally impaired as well… given enough first-world-boredom, someone will make the fight against “dumb” their cause. What about when there is data and evidence to something and the person refuses to see or hear… you will have a hard time finding an insult that first-world-boredom won’t try to link to shaming people with disabilities. I’m all pro using insults like asshole instead of moralistic stuff when you are trying to insult a person’s character… but what if you are trying to insult a person’s cognitive ability?