I was told at the highest levels of some of the well-mentioned secret societies they are fully aware of the truth and are afraid of that one known as Jesus/Joshua.
It doesn't take too much digging to see that a key facet of Zoroastrianism may always have been about pushing toward or building an 'ideal state'.
Those who think and rule carnally think it all has to do with physical land. Physical land and being joint-heirs of the flesh (i.e. the manifest realm) are secondary blessings of God and the kingdom of heaven, IMHO. The primary blessings are health, sound mind, healthy and sound relationships with God and each other.Eventually, the Church of Rome had to respond and defend the territory being encroached upon else be taken over by the "newcomer" and his caliphate army. Hence the start of the Crusades which, of course, also eventually morphed into a wanton killing spree of ANYONE who opposed the Church of Rome, including the true saints who followed, and claimed, Jesus the Christ as their Redeemer.
Money, Power, Control; nothing more.
The truth has its way of lighting the Path and aiding discernment.Notwithstanding the aforementioned "power struggle", I believe the Church of Rome plays a major role in what you put forth here; the similarities between Islam and the Roman Catholic Church are quite astounding when one delves deep into study of both.