Name one "hard pg 13" that has made a billion dollars? Better yet what X-men movie has made a billion dollars? They are 36 movies that have made billions, Disney has around 20 of them. What is pitch lets make another Logan 600 million or DoFP 747 million .The best fox movies appeal to a smaller crowd .The X-men franchise not having a movie with a billion made is about as big failure a Justice League and Batman v Superman movies missing the mark.
Pretend you are investor making a case for darker movies. What are you saying? Hey Disney lets make movies like Fox because Fox movies did so well with the fans? You going to point at the success of the dark DCEU? What case can make that Disney isn't going look at just laugh you out the room?