I have a question regarding the specifics of the OP's initial inquiry:
Is he asking for instances of religious persecution not at the hands of monotheists? Or where neither the persecuted or the persecutors are monotheists? Or, to get even more picky, where do instances where religions persecuted on non-religious grounds fall?
For example, during the Principate, most persecution of the Christians was on the grounds that the Romans absolutely hated any non-public association of people. Remember that even loved Emperors like Trajan opposed innocent things like volunteer fire brigades on the grounds that it could evolve into a secret society. Thats why they also persecuted various other eastern cults, even ones that did not conflict with the Roman state religion.
Is he asking for instances of religious persecution not at the hands of monotheists? Or where neither the persecuted or the persecutors are monotheists? Or, to get even more picky, where do instances where religions persecuted on non-religious grounds fall?
For example, during the Principate, most persecution of the Christians was on the grounds that the Romans absolutely hated any non-public association of people. Remember that even loved Emperors like Trajan opposed innocent things like volunteer fire brigades on the grounds that it could evolve into a secret society. Thats why they also persecuted various other eastern cults, even ones that did not conflict with the Roman state religion.