Through the academic and religious oligarchies, there seems to be a very intentional :"oversight" that has included creating fictional characters and putting Ahriman qualities upon them. Even avoiding speaking of the Persian traditional knowledge that would go quite far to explain what we're seeing today.
Let's go for a walk and I'll think out loud for you.
I would like to suggest a fantastic, thinking, and knowledgeable person, Prof. Irani. This is one hour, and there's a four hour extended interview with him you'll see in recommended list that I would also recommend. I'll be revisiting Zoroastrianism, Ahura Mazda, and Ahriman sooner than later.

https://youtu.be/3s1t0hrl4pE

Mahe Ohna, ✌️ Favour ALL