I understand the sentiment, but democracy involves leaving others to comment however they want on whatever they may choose to. Take it for what it is - a joke, and more than likely not a statement proving that North is transphobic. I consider myself an ally and I do sometimes land gay jokes with the family. Does that make me a homophobe? Dig deeper. Unless there's cause for outrage going back for quite a while on a personality's social media presence, chances are you're just giving in to outrage culture.