Dick,
Ever heard of procedural control? Get it in your head that a tower or a centre does NOT have to have radar to be safe. Procedural towers have set rules with inbuilt safety margins that when followed by all (pilots and controllers) provide an immensely safe ableit a bit restrictive environment.
You seem to have the idea that because you are flying, you are the king of the air, you dont have to tell anyone where to fly, require a clearance, leave you alone, etc etc, but if you do something stupid then a controller is supposed to be watching your every move and tell you immediately.
Have you seen how many radar returns there are to the west of Sydney? how many VFR aeroplanes are out there on any given day? The day you stopped providing "solutions" that work from your standpoint alone, and exist only in your limited comfort zone, I might start to listen to you.