You are right the term is person. And they do not have all human rights. I am no expert in the US constitution either. However I still feel that a corporation

You are right the term is person. And they do not have all human rights. I am no expert in the US constitution either. However I still feel that a corporation argueing for rights to free speech (like Facebook here) is not in the spirit of the contstitution. Free speech is a human right not a corporate one