To me it reads more as someone who is jaded, cynical, perhaps a bit wounded by other people’s attacks on them and projecting their insecurity and frustration about that.
IMO very few people are assholes by nature. If we can create an atmosphere, and tools, that encourage civility, then we will get civility.
I would prefer that “wrong” people without “proper education” be countered with arguments rather than jeering.
After all, without arguments, who is to say that the person who’s wrong is not the one jeering?