E, I, S, N, F, T, J, P all exist a-priori , that is, they exist independently of human perception. The cathegories are there just as they were there before psychologists started desribing human personality and they desribe reality absolutely.
Reality is constantly mutating and morphing. Like light it can never really be truly caught or desribed but E, I, S, N, F, T, J, P are relatively precise ways of describing human personality even if they are ultimately approximated.
E, I, S, N, F, T, J, P concertly form a complex set of goggels that we unwittingly supercede upon ourselves. In doing so, we create confirmation bias, conditioning ourselves to see people primarily through whatever inclanation we believe their type to have.