How did corporations get protected rights the same as a person?
Santa Clara County v. Southern Pacific Railroad, 118 U.S. 394 (1886). Via dicta of a sidebar discussion from the bench, a bought-and-paid-for U.S. SCOTUS (yeah, they were.... check your REAL history) decided that, without deciding the issue through case law, that they'd see corporations as people. After that, the case was cited, as needed, to do the same.
So, in fact, there is nowhere in the Constitution, or any concrete law that affirms a corporation as a persona ficta (fictious person).
Where in the US constitution or bill of rights does it say any person who is physically in this country reguardless of legal status recieve the full rights provided by the Constitution of The United States.
Bullwnkl.
Anywhere it says "person" or "people" instead of "citizen". There's your basis, and your answer.