So I'm gonna go ahead and roast Asriel here. (Not serious thoughts follow, but I still feel a little this way about some stuff, don't take it as seriously as you think you should)

Everyone is all life "oooh, poor goat child, he's so cute, boop the snoodles", and I'm just like no. Back in the day with Chara, before he realized how terrible a plan it was, he was all in for it. The dialogue doesn't say "I don't want to do this", he's saying "I don't want to do this anymore". We blame Chara for having the idea and being evil and all, but the fact that Asriel took them back to the underground himself shows that he had the strength to end the plan anytime he liked. He wasn't tricked by Chara, he wasn't betrayed. He thought it was a good plan at the time. Now I know Chara did some fucked up shit while they were alive, but I'll be damned if Asriel has the right to say Chara wasn't the best person. Chara never betrayed their brother. Chara never even lied to Asriel.

And then look on the other side of the tracks. Each and every one of those people acts against you at some point in every route. All except Sans. Sans will never imprison you. Sans never tried to kill you. Sans never lies to you. Sans never does anything but be your friend, help you, and apparently has a glowing dick. Don't take Sans's smile away. Pull that lever. Give Asriel another does of death.

Don't worry Frisk, Asriel is already dead.
I like Asriel, but I don't like Asriel like I like the other characters all together…