When he's strangling Bart, there is no resonance or connection with him as a human, like say you would have if you were to strangle someone, or really a subjective awareness. Everything he does/says seems Fi-PoLR and to back Fe. His emotional reasoning comes across a lot more purposefully objectified than what I see in Fi types, ie. for prevalence's sake, Homer's comparative type from the other show, Fry. Maybe this was a tactic for supplying emotional stimulation to the population of viewers, that was influenced by one of the creators (to make his personality more Fe.) Also, both main characters seem to back Ne-INFJ Groening's primary format of comedy.
Here's a principal video
http://www.youtube.com/watch?v=4zVCN6SFFzg#t=0m40s