This is just lazy, not even lazy writing since it's a knock-off from The Simpsons episode "Treehouse of horror XIII" S14. E1. In that episode Homer creates multiple versions of himself to do his chores. The premise is interesting, but gets ruined by jokes that are so obvious you see them coming a mile away.
This show has survived itself long ago and they're just going through the motions to cash in on what once was a hit show. The people behind this show stopped trying years ago and it feels like all the subtle jokes that made this show funny in the beginning had to give way so that anyone and everyone understands every little thing right away, when they don't explain the jokes ahed, that is.