They also forget Chara is CRUCIAL for gameplay. Your save files are under their name, their stats are what protect Frisk, when they die, they show Frisk a memory, they can translate Froggit language (Noticed how they can say ribbit ribbit followed by translation on the overworld, but in battle, there's only ribbit ribbit?)and any other languages the monsters have which Frisk doesn't understand. And Chara also provides the final memory to save Asriel (Hell, they change the ACT to SAVE, and later remove all the buttons EXCEPT the SAVE button).

Someone even asked 'Isn't the narrator Toby?'

Come on, man!

Toby is the Annoying Dog, who doesn't help anyone at all (Except Sans, who uses his help in trolling Papyrus). He's only there to annoy, hence his name. Hell! The mysterious room in Snowdin is Toby's room, and he's asleep!> The narrator even asks you, 'Do you want to fight the dog?' The Narration is still there, so it's clearly not Toby.

Besides, hasn't anyone noticed that Asriel has terrible naming skills and says Howdy, like Asgore? And Chara says Greetings, like Toriel. Toriel likes puns, and the narration has plenty of puns in it (It's a snowcahedron! You are filled with DeTEMMIEnation). It makes sense to me that Chara picked up Toriel's behavior.

I'm not saying they are an angel or a saint. Yes, they got Asgore poisoned (I' pretty sure by accident. Why would a kid intentionally posion someone?) . Yes, Asriel and them died because of their poorly thought out plan, and because they didn't know how absorbed souls behave (The writings in Waterfall are heavily one-sided. It makes it look like you absorb soul, BAM! You got power and that's that! Soul is dead, it won't argue or take back control, but you got it's energy, like Snickers). What I'm trying to say is that, look at Undertale's message. Then look at the various hints Toby left for us throughout the game. He's clearly a minimalist, and didn't explain much on purpose. He wants us to find out on our own. He clearly left it up to us to wonder, what sort of person was Chara. And I believe....they were human. Everyone has flaws. You don't hate humanity for no small reason. But I know they must have had a good side. Otherwise, why do they keep the Heart Locket? (In Genocide, they even say, 'Right where it belongs.' They like it.) Or why is there a sweater for Asgore in their closet?

I believe that yes, they weren't the greatest person....but that doesn't mean they were the worst either.

Thank you for reading this long comment. It took me 10 minutes to write (Gee, I'm slow).