>>528715703
I dont think SOULS are normally floating around and ripped out like that. I'm pretty convinced though that red souls are like main character souls and that the monster war in undertale only went without a single human soul captured is because on of the humans pictured in the intro probably had a red soul. Hell the idea of red souls being something that could either be an angel or devil depending on its inclination feels fitting. you could call down a soul with kill everyone autism or it could just have explore every corner autism so calling upon one to accomplish something big would still be a huge risk.
monsters may be massive jobbers but when theres the potential for one of them to go undying on us I dont see any other way for it to make sense.