I feel like this could be one of those "I don't like these jokes, so edgy" kinda things.
Because, honestly, why should a joke like this make you angry? Like, that's a bit much for this simple joke. I can understand if it was discriminating to you or whatever, but it isn't even a discriminating joke. However, if you are offended by this joke, then that takes us back to point 1: It's a joke, why are you angry at a joke?