The cardinal should get out of the house and meet some transgendered people. The best thing the Church can offer is pastoral counselling which meets transgendered youth where they are and helps them work through their confused identity. An encyclical that would condemn gender theory would just be a cheap, easy response to a phenomenon which needs a response on the ground. Moral condemnations just reinforce the view that the Church is out of touch and has nothing positive to offer. Let's get the smell of the sheep.