While Order and Chaos have always been there the labeling them as masculine feminine hasn’t.

Divine order in Greece was Thetis. It was exhibited or enforced by Zeus but it was the goddess Thetis.

In Egypt order is Ma’at, and Chaos is Ifset. Both women.

In Daoism, Yin and Yang have elemental components and chaos would have more to do with certain elements, such as fire which is Yang or masculine.

Dharma and Adharma aren’t sexed in Hinduism.

While its destructive elements are shared by Shiva and Kali.

Yes, the mythos of a male sky diety fighting a dragon of chaos is prevalent but just as often that’s a male dragon. Enki slew Tiamat only after he had to put Apsu to sleep.

His characterization of feminity as more chaotic and masculinity as the ordering principle plays into his own selective sorting of the stories and myths. His own interpretation of the symbolism.

Which just so happens to play in well with his fan base. Men trying to find more meaning and order in their lives and feeling particularly attacked by women and other minorities also trying to find more order and in their lives by overcoming the oppression of the systems they have been born into.

He’s identified with those systems and calls them “civilization” and then symbolically links the people who that civilization hasn’t been working out well for to the “chaotic factor.”

It’s not a pure archetypal symbology, he’s cast his own perspective on it by creating a gender to the roles which throughout cultures have been represented by either gender.