Outside of Europe, theocracies almost always tended to bring political stability. The Aztec civilisation, for example, was based upon theocracy and was able to sustain vast populations before the Spanish conquistadors destroyed it. Native American culture may have entailed a type of theocracy that enabled communities to live in harmony with their environment and not hunt animals to depletion. The reason European Christian theocracies were unsuccessful was that Christianity contains no political instructions, so a western theocracy is tantamount to arbitrary rule. Islam, unlike other religions aims to provide both a political framework and a spiritual solace for its adherents hence the persisting numbers of Muslim theocracies.
[P1] Historically, theocracies have caused politically harmonious societies.