Nimrod the Cushite from Kish (Sumer, present-day Iraq)

[Samaalic Era]

It's fake obviously...

However the point is that Dir recognised Cush as their ancestor and Somalis still name their children Kooshin (Cush) till this very day.

Thats not true. Kooshin is not cush. The lineage of Samaale ends with Xashi and it goes like this, Samaale Hiil Abroone Loxaan Xashi. In one other account, he is a descendant of Nuxeyeh.

The Cush thing is a biblical myth that has nothing to do with Somalis