This is all religion based. Until both sides stop their religious extremism, this will never, ever, ever, ever, ever end. The last 5,000 proves that. Set strong walls between church and state, and keep them strong.
Or watch as religions attack other religions about religious nonsense until everyone is dead.
Religious people always cherry pick their morality from religion. That's why there's people comitting genocide in the name of their religion right now. In several places all over Earth. Only because of religion.
Religion damages your mind and sanity by forcing you to choose between fictional religion and actual reality. Get away from religion now and permanently to increase your mental health state.