this is actually an interesting emperor, for example did you know he wrote a letter stating that he wished to promise the restoration of a temple for the Yehuborim? https://avande1.sites.luc.edu/jerusalem/sources/julian-epist-25.htm he viewed the different religions as hellenism as the best...

Zoroastrianism did not turn them into demons from my understanding, they still worshipped those gods. it has a polytheistic pantheon with a supreme leader. other forms of paganism do predate it and I completely agree with that part, however @Wotanwarrior was saying that Zoroastrianism predated...

so I have been lurking for quite a while, still trying to discern if this is real or not. so what evidence do you have these are stolen? Zoroastrianism came from about 600 BC, while judaism definitely predated that.