Therianthropy is really a unique type of existential and body horror quite honestly.
Perpetually stuck longing for experiences and abilities your body is physically incapable of providing you, fighting against a form that feels utterly foreign and disfigured compared to how your mind attempts to interpret it. An animal shoved inside a vessel and society it was never meant to even have knowledge of, with no obtainable means of escape.
The horror of always appearing to those around you as something almost alien to yourself, of your own tendons and bones barring you from grasps at freedom, of being something you are not.