Your are correct, however you are describing empathy here when the post is about how children become emotional regulators for abusive/absentee parents which becomes a lifelong and debilitating psychological issue for them as adults.
Empathy is best nurtured in a reciprocal manner especially during childhood development and it starts between the child and their caregiver(s).
I just watched that movie for the first time last holiday season, and it was easily my favorite that I rewatched at least twice.
As a big Always Sunny fan, I agree with you. Frank didn’t go full warthog in the movie, but definitely still Frank but in a suburban setting.