the rise of christianity caused the eventual destruction of the temple. those who rejected god, their lord and king, they suffered the same fate the egyptians did who rejected god and denied their chance of having their home and families marked by the blood of the lamb, which would of saved and spared them from god's judgement and wrath. and so they cursed and denied and were never marked by the blood of the lamb of god, jesus the christ. they didnt just deny and murder him, they did moses and elijah because jesus was following and filled with the same spirit and father.  islam only came to exist because of catholicism, it was directly born from it because muhammad was a roman and a high ranking member of the catholic church. and catholicism only existed becuase of reasons similar to your own theory.  before christ there were many "pagan gods" or lords that people worshiped and followed after. and rome was an empire, one in a line of many that came before it back to babylon. and rome recognized and was the authority of a variety of different pantheons from the tribes and nations in which they had dominion over. but christ changed everything. theres a reason the clock reset with him and theres ad and bce. people no longer quit following after all those various other pagan gods, they quit looking at the emperor as being a lord or god and instead followed after christ and god in heaven. and so rome did the only thing they could to not lose all power and authority, they took on the authority and recognized christ as the one true god and became the authority of it as to regulate its spread and maintain their system of law. and thats one of many things it shares in common with its younger sibling, islam. the union of law and an authoritative state with a priestly upper class. and all of that is in the vein of babylon and baal / zeus / ham / devil worship. thats how its still his world in a sense. but it'll eventually fully become christs.
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