IIRC, Frank Herbert very explicitly described how Leto II was applying homosexuality to his Fish Speakers in order to keep control over the violent traits common for any army. Luckily, it was just a few pages of it.
Then in the last book he started writing about Space Jews and I got a little frightened where that might end up…
That’s why rougue-lite exists. Each run gets a bit easier, though you start getting new and harder tasks. If it’s done well, the repeatability is immense.