Sorry, but you are misrepresenting what I say.
I absolutely agree that it would be ridiculous to bring the Bible into the discussion of terms like DNA, chromosomes, genes, radioactivity, special relativity, etc.
I am rather bringing the Bible into the discussion of the biblical term “humankind in the image of God” (that obviously “is assigned by criteria” that have very much to do with the Bible), and try to ascertain how the community of beings referred to by this term relates to the biological species Homo sapiens. This seems to me a totally legitimate endeavor.
In particular, I stress that the word “humanity”, “is considerable more than just a genetic and biological criterion”, i.e.: more than what the term Homo sapiens is all about (as @mitchellmckain rightly states).
So, what I do is to accept that “the current situation” of “humanity” cannot be separated from “called”.
And this is very much what you do too:
“The current situation” begins at the moment when “God’s initiates a special relationship with humans”, and calls Homo sapiens to be “humankind in the image of God”. Today, each Homo sapiens individual is “called”. However, there was a time in history when the ancestors of today’s Homo sapiens were NOT “called”.
On the other hand, the distinction between Homo sapiens and other species depends on the time in history we consider. Today we can sharply distinguish them from each other. But there is a time when we cannot distinctly establish the species that best fits as the ancestor of today’s Homo sapiens.
In the “current situation” the sharply distinction between Homo sapiens and other species allow us to establish the prohibition of murder. If we take this distinction “in the current situation” as the standard for defining Homo sapiens, then we are defining Homo sapiens as a distinct biological species referring to “the current situation” and therefore, according to your statement above, by means of “called”.