Neanderthal and Modern Human Offspring

[Caution advised for the video, I'd say parental advisory.]

Archaeologists Uncover The DARK TRUTH of Neanderthal Ancestry
Highly Compelling | 30 Sept. 2024
https://www.youtube.com/watch?v=8i14YXyQcD8

Two divergences from your story.

Both hinge on "40 000 years ago" = 2957 BC, in an atmosphere having as yet 1.628 pmC. If carbon dated.

1) Both Neanderthal and Homo sapiens spoke an ancient form of Hebrew and had a common ancestor created in 5199 BC;
2) the volcano explosions happened during the Flood and on the Ark only traces of the Neanderthal genome survived.