There is a fundamental difference in the concept of an entity that exists as a whole, and a legal construct that is purely an economic allocation abstraction.
Nations aren't real either.
There is a fundamental difference between the basic building blocks of life and a convenient term for an ambulatory hallucinating collection of them.
This can go on. Do you not see the flaw in your argument?
There is a fundamental difference in the concept of an entity that exists as a whole, and a legal construct that is purely an economic allocation abstraction.
Nations aren't real either.