Squidward is an octopus. Hello Kitty is a (human) girl, not a cat, according to Sanrio. Thankfully Goofy is (still) an anthropomorphic dog. So far.. At least for now..
A friend once said, “Don’t believe everything you believe”. It’s been years and I still try to figure out what does it mean in bigger picture, but I assume it could be applied on this kind of situation. Who knows later Disney would announce Mickey Mouse as an elephant and there’s god gene on praying mantis.