I am not claiming the Koranic account had any validity! I don’t know how you can draw that conclusion. I thought my statement was dripping with sarcasm about the lack of real historical understanding of Muzzies. They literal believe that there is no history prior to Mad Moe!
There is an enormous amount of historical & literary evidence that the Koran is mish-mash of material from Gnostic, Judaic, Syrian-Christian & Arabic pre-Christian sources.