[rocqua]

The concept of an identifier comes with the concept of a bijection (or at least a injection). That is a truly basic concept in Mathematics.

You could argue Mathematics is a human construction. But at that point, isn't every concept a human construction? In that case it is hardly helpful, or meaningful to say a concept is a human construct, since all concepts are.

[imtringued]

The problem isn't the concept of a bijective function, it is picking the right function and that is a social problem.