"But you know what? I can be attracted to people who have belly buttons without having a mental breakdown about it, because we'll have sex in ways that that don't involve that part of their body. I don't have to touch my partner's belly button or look at it. There's a billion other things that you can do if you like someone and you want to be physically affectionate"

Touching or at least acknowledging genitalia is for most people, a key part of sex, unlike belly buttons. This is completely ridiculous. It translates to "just ignore their dick if you don't like it and have sex with them in other ways, otherwise you're shallow and transphobic". It's literally the thing they just said no one says!