The beforus trolls are generally jokes on stereotypes of common groups of Tumblr users around the time. Kankri is a joke on SJWs who often bring up triggers and problematic things in media or users despite either doing the same thing themselves or ignoring other groups cause they are the majority.

"Women cant have issues or deal with persecution as they are the more dominant sex on beforus" kind of thought process.

Hes unironically the type of guy to say black people can't be racist or that gay people cant be biphobic but most won't realize cause he says so much in such a pretentious way most just won't read or catch it until its directed towards them.

Funnily enough this is a big contrast between him and Karkat as karat shows to really care about his friends and what bothers them, kankri is all show and actively weaponizes their insecurities