Identity comes from the concept of identification/classification. These are notions which evolved with modernism in Western society, or the ability to measure things exactly for the sake of predicting and knowing. There is no exact meaning for identity due to its elusive nature, as its meaning belongs to the fluid individual. My post presumes the definition, and yes, that makes it just an assertion.

Well, your entire paper hinges on a definition of identity that is completely internal, yet your measurements are external.