....that "GA is excluded" is nonsense; if you consider that clearance has been refused on a particular occasion for no good reason, then file a report about it and the facts can be ascertained. And if you do route around or below CAS, what is the problem? There could be as many or as few unknown aircraft near your level as in any other part of Class G airspace - and you always keep a very good look-out, do you not?
I think that just shows just how naive and ill informed you are.
MJ
Ps. Oh, and patronising.
