I am not a believer in the Meiner/Blumenbach theory. That has led down very dark paths.
I do however believe in the Biblical account of the families of the sons of Noah as represented by Shem, Ham and Japheth. And the sons of Jacob (a descendant of Shem) are no more “supreme” above any other human, but were chosen for a specific purpose and were given God’s own law, which is not a privilege but a responsibility. There is also the promise given to the descendants of Ephraim and Manasseh, Joseph’s two sons; this prophecy is quite often glossed over.
I am glad. I have never heard of either of them or their theory. I merely watch, read, ask, absorb, discern, and, at times, comment upon that which I've observed.