If a living entity could not distinguish itself from a nonliving entity there would be no urge to survive.

Without the urge for survival, there would be no motivation to adapt.

There would be no reason to survive or evolve.

It is like wondering why no boulders were rolling up hills. Without an incentive to survive there is no urge or underlying rationale for doing the work to stay alive.

Furthermore, without an underlying motivation to remain alive, the concepts of accidental evolution are meaningless. The urge to survive requires the living person to distinguish themselves from what is not living.