Honestly? Not that bad!
Welp, everyone has that moment where they've gotta make a joke that'll potentially offend others. In reality, it might seem offensive.... but you somehow make it not all that offensive!
.... Yeah, I'm just talking in circles now. XD
Anywho, great animation art, great concept, and folks? Stop being hypocrites and getting up in arms over this. It's a joke and EVERYONE has at some point made that even-slightly offensive comment.
I use a quote that may have been used many times before but it still rings true: Everyone's a tiny bit prejudice. Doesn't mean we outright hate people but we still fall victim to the occasional stereotype! Just relax and go along with it every now and again. x3