Why are you then arguing at all, if you don´t take the factual mentioning of the Sun in their creation story seriously?
Mentioning the sun in a story, isn’t “factual”, Native.
And providing symbols to actual objects or mythological objects, don’t mean they have understanding.
Painting stars on cow or a naked woman’s body, on her and feet, is simply superstitions and wild imagination, Native, not them understanding what these stars really are.
Do not confuse symbols or iconography as facts, Native.
The facts are, THERE ARE REALLY NO NAKED WOMAN OR HEAVENLY COW IN THE SKY!
The facts are, there are no boat or barque that sailed across the sky, no falcon-headed god piloting the boat.
The facts are, the Sun isn’t a sun god, a sun goddess (whether she be in the shapes of cow, lioness, or a eye of Re or the eye of Horus.
Facts required evidences, not symbols.
Until you can provide actual evidences that heavenly Solar Barque, heavenly (naked) woman, heavenly cow exist, you actually have no facts at all.