Couldn't understand or remember any of this. So either it was not very good or I read it forever ago. Pretty sure it's more the former.
Definitely disturbed by the MC and the villain girls. They obviously knew what rape was, and that it was very bad because it's hinted with a thought bubble when they're attacked and afraid. Being a child is no excuse for sadistic psychopathic or general cruel behavior.
Just read another manga where a 6 year old purposefully tries to drown his 5 year old brother. Obviously a bad seed that has little hope to be helped. I'm not saying you should kill him off before he grows up BUT if he's about to be eaten by a wolf, you don't have to save him... it's called karmic retribution.
So yeah. I guess pretty tricky in this situation because I wouldn't want to watch them be raped and I wouldn't want to save them. I would prefer they cleanly die but that's obviously not going to happen. So you're left with killing them yourself which I'm not cruel enough to kill children. Probably would of walked out of the room and ignored the visual while holding the goblins off at the bottleneck of the doorway.