What you are saying is "I am a glider pilot so I have my own rules. If you hit me so be it I should be able to do what I want".
I am not a glider pilot (well, unless
)
However, I think you are correct Gliders have their own rules... and therefore your statement appears correct if they are abiding by them? Seems they can largely also fly up to FL195 sans Xpdr... (?)
My CAA CAS piece of paper shows no radio, ATC clearance (and presumably Xpdr) required in F/G in IFR... so if they are "qualified" under whatever mechanism a glider pilot needs to fly in IMC..?
NoD