I don't understand why you'd complain about the ending insult, it's obviously a joke, I don't see any harm in it whatsoever.
Or maybe I'm just used to being insulted lmao.
I actually dislike the word "snowflake" as a description of easily offended people, but my friends use it all the time and honestly it came to mind when I read the responses complaining about the ending insult. Still a shit word.
Although I can agree that if someone who shares some characteristics with the character they might feel a little hurt, imo it should still be pretty obvious that it's a joke and if something like that gets to you, you're probably very weak mentally in which case idk how you can survive on the internet at all (seriously though, if you do have issues with mental health, seek therapy, it really helps. Even if you don't, still get a therapist, it's improves anyone's mental health regardless of if it's already positive. Beware that some therapists are shit or don't match your personality, so you should try multiple ones instead of giving up after one doesn't work.)
Maybe I'm just a toxic person though, I've heard that a couple times, it's just how my world view works :p