For the moment let’s get back to the basics. Do you agree that according to the FAA I can fly within feet of the surface if I so desire as long as I maintain 500 foot separation from any person, vehicle or structure?
True, as long as you're not creating a hazard. (... and it's in 'non-navigable airspace'.

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Non-navigable airspace is simply that which is not navigable airspace, simple english. I gave you the US code that defines navigable airspace. It is not used for aircraft control, but is used for towers and other structures because you have little or no restrictions when erecting in non navigable airspace.
Your attempts at rationalizing a made-up term are laughable. Trying to come off as an expert isn't your strong suit, guy.
No, flying a model airplane at any altitude is trespassing. Only certified aircraft can fly over other people's property
I almost shot coffee out my nose on that one! SP, you should change your sig to Mr. Mxyzptlk from Bizzarro World. (Anyone remember Superman comics?) You get everything warped or backwards.