I don't know why you persist in this canard. Corporations are protected by the Bill of Rights completely independently of their status as "organizations" of natural persons such with rights; they do not in any sense derive their constitutional protection from the constitutional protections afforded such individuals. This is self-evident in any of the canonical cases you might choose to cite.

As such, if you want to defend their constitutional treatment, you need to defend that argument, not the one you made up that you think makes things easy for you.