While I appreciate your point, the size of the engine makes absolutely no difference... you can hurt yourself just as badly on a Vino 50 or a YZF R1...
That said, I ride daily (a KTM 990 Adventure if you are interested) and I believe in the ATGATT philosophy, All The Gear, All The Time, I NEVER ride, not even around the block, without full textiles, helmet, gloves and boots. I was in an accident when I was 18 and learned a very important lesson, you can wipe sweat off, you can't wipe road rash off.
The case that the OP is referring to was heard in 2008 iirc, the case was turned down and Sikhs HAVE to wear helmets just like everyone else, even Zekes.
The opening thread certainly sounds rascist and intolerant to me btw.