Yeah the succubi culture is understandable how it came to be but they way they use people is far to inhuman for a human culture to forgive I only saw women in the town and they had a crypt with dead assuming that’s the men if I’m wrong then my first statement it wrong.
One one hand human have it ingrained that it’s to dangerous to coexist cause one bad succubus could probably cause an exponential danger of mind controlled individuals
And the succubi are indoctrinated to hate other races because they were abused for what value they had.
Peace is unlikely the races are far to different and no one is putting in the work except mc because honestly a medieval esc society has more to worry about then promoting coexistence at great risk to stability one bad succubus and boom king becomes a tyrant.