There is no set reality, all that matters is the individual’s take upon reality. To most people there is an individual who they believe exists who is, according to a definition which was laid out in a document they know as the constitution, the president. At the same time however there is no such thing as property or even an individual, merely things which an individual claims to exist which fit these definitions of things.
Two and two put together can never make five, that is incorrect and cannot be, however, if someone percieves the two or the two or the plus or the equals or the five in a different way then it is possible. Once all of these things are perceived in the same way by each individual or entity then they must come to the same conclusion, but if not then no. Perception is necessarily reality to that individual, one knows nothing of reality other than what one percieves. If I told you that “we’re really all fish in a big fish tanks owned by sir Zork Esquire” you just didn’t know it and you couldn’t percieve this and it had no effect on you then so what? You’d continue facing that which was in front of you, your reality
If an individual believes that god exists then sure, he exists in your reality, this doesn’t mean that he exists in mine. If person X is good in my mind and my reality this does not mean that he will be a good man in yours.
I’m pointing out that just as the idea of a president is an imaginary construct, so is the idea of property, or even something that constitutes an individual. Bob could not be considered bob, he could just be considered an extension of a greater force or of the environment or whathave you, the individual percieves his environment and world and ascribes to it that which he believes to be there.
I believe things like the “Constitution” certainly exist as a concept. What we call “The Constituition” is a specific piece of paper with scribblings on it. Whether it has any forceful effect on citizens is left for the citizens to decide. A “president” is a man in a suit, but you can also define president as, “a man in a suit that many others perceive to be their leader.”
What is the purpose of asking me to answer a question you and I have both already addressed? I can tolerate playing along to a certain point, but I am not even sure you have one if you want us to keep repeating ourselves.