The cannibalism (with different emphasis on eating and shitting), hermaphroditic imagery and longing for meaningful relationships all are gross/blunt representations of Jungian concepts. (As far as I can tell)
Spoilers ahead, I guess.
All the "therapy sessions" MC Jung had are revealed in the last episode to be a conversation between him and himself. This ends with him being eaten and integrated, literally and figuratively into a more potent and powerful version of himself. This is the same blunt metaphor that involves the other side characters whom he learned from and helped him grow more powerful.
Throughout the series, Jung confronts and overcomes flaws in his outlook/worldview in the way (I assume) psychologists using a Jungian model would bring a patient through.
I am no expert in how the specifics pan out, but I think the concept of "Integrating the Shadow" is the main idea behind the whole thing.https://www.youtube.com/watch?v=5PIDEx-GvnQ
The bleak dystopia, full of violence, rape, and cannibalism is itself a metaphor for the unresolved pain/trauma that hurt a person still stuck in destructive coping mechanisms. In a way, the willy-nilly back-and-forth between feminine/masculine actions and characteristics of the characters mirror, in base/obvious terms, this imbalance and chaos between the yin/yang whatever causing the conflict/pain of MC Jung's existence.
This completely changes in the last episode where Jung "grows up," finds love, etc. blah blah blah, and you are beaten over the head with an idyllic world. With peace, harmony, and integration restored to the world; and, more importantly, Jung himself.
Regardless, like anons said earlier, the sheer absurdity and vulgarity of the cartoon are entertaining by themselves. Weather or not someone wants to go deeper into the psychobabel behind the imagery/story is completely up to the individual.
At any rate, thanks OP for sharing.
Had great time watching.