PSA: Don't force your headcanon as canon.
Don't shove down my throat and tell me these kinds of bullshit.
It's okay to interpret Chara as good. It's okay to headcanon Chara WAS good. It's okay to interpret Chara is a actually a tragic, sympathetic child.
But please remember, that they'll only be INTERPRETATIONS. They will never be CANON.
There is literally nothing good shown about Chara in game. Even Asriel said that "Chara wasn't a good person.".
Chara is mentioned in the Pacifist Run through the recorders on how THEY LAUGHED at Asgore for having BUTTERCUP POISONING.
Chara is mentioned by Asriel that THEY TRIED TO KILL THE HUMANS when they were fused together.
Chara appears in the Genocide run with BLEEDING EYES and a NIGHTMARE FACE and they DESTROY the entire game.
Chara appears at the end of a Post-Genocide-Pacifist run where THEY LAUGH MANIACALLY as the screen fades to black or where they are seen in a picture W