Undertale - Why must you Undertale artists hurt us like this?

Papyrus stop trying to forgive the heartless monster. You can only be so much of a cinnamon roll.

My hope would be he'd be the final boss of the genocide run in hard mode. In hard mode, Toriel never asks Sans to protect you so the minute you step out you fight Sans. Then you can kill or spare him and this time he won't dunk you if you spare him.