As previously stated, Innate Divine Demons and Innate Spiritual Treasures are both conceived from the Qi of Primordial Chaos.
This means that if you have enough Qi of Primordial Chaos, you can use it to conceive Innate Divine Demons, or refine Innate Spiritual Treasures.
However, the quantity of Primordial Chaos Qi required for this is huge, so much that millions or billions of strands would not be enough.
Obtaining a strand of Primordial Chaos Qi requires an Innate Dao Sovereign to refine the Chaotic Qi outside of the heavens, unceasingly, day and night for a year.
Millions of strands of Primordial Chaos Qi would require a Innate Dao Sovereign refining Chaotic Qi outside of the heavens for millions of years.
Given this, which Innate Dao Sovereign would be willing to do this? Millions of years, even for an Innate Dao Sovereign with an unlimited lifespan, it is still an extremely lengthy duration, no Dao Sovereign would be willing to waste millions of years on this.