It's simple Batman. For years, I've been trying to convince you that raping the Joker is the only way to end his menace once and for all. But you just wouldn't listen.
But I suddenly came to an epiphany. Batman needs to rape the Joker in order to end this, but who says it has to be YOU? Batman is a symbol, you said it yourself, as such me and a select team of are going to dress up as Batman, and gangrape the Joker. And then Gotham will finally know peace.
I can sense your anger, but this is on you Batman, if only you had listened to me, extreme measures like this wouldn't be needed.