It seems like this may be a religion to you. So I will only take on one of your beliefs. The earth conducts, but is resistive, not superconductive. The resistance is about 137 ohms, enough to lose a lot of energy in an earth transmission system. Question. If the earth could be used as a conductor, why does every electric company spend the money to use two conductors? One to deliver the electricity and one to return it? Answer, copper losses are less than the earths.
What?!
I think the earth IS used as part of the circuit. Isn't that why electricians use the term "ground"?
You have a hot wire, and a ground wire....and don't give me that crap about the ground being the third prong either. That's not the ground I'm talking about.