So, with the exception of "because that's how I think the rules should be, and look, thats how cars do it", what reason do you have for wanting N-Reg banned? I've not seen a single logical reason from you based on any kind of facts; but perhaps I've missed some gem somewhere. Airplanes are not cars, and it's pointless to try and compare the two systems.
Currently, N-Reg is entirey legal, and it works. What was the problem, again, other than a desire to make life difficult for other people? Remembering that this forum is for private pilots who have no need to learn about the systems of a Boeing 737 to fly IFR; I too have done both JAA and FAA theory exams, and found the JAA to be the same material wrapped in a thick blanket of worthless tripe.