Ok, let's look at this. Mr. Romney, please name any human that, like a corporation, lives indefinitely, can be in many places at the same time, and can kill large numbers of people sometimes knowingly and never get the death sentence or even prison, only a fine. Also, unlike people, corporations can be sold or dissolved. These are obvious legal differences, but cosmology -- the science of our universe as a whole -- gives us a much deeper understanding of Mr. Romney's error.
Corporations constantly exploit their different legal status from individuals, and they are also orders of magnitude more complex than people and operate according to different rules. It is absolutely ludicrous to imagine that corporations are nothing but people and to use this fraudulent metaphor to protect corporations at the expense of the real citizens the First Amendment was designed to protect.