Homochirality of life is not likely a matter of chance. There is plenty of evidence which suggests that multiple influences from catalysts, substrates, parity violating weak forces, gamma rays, stability of complexes and so forth influence the energetic advantage of one isomer or enantiomer over another. Just because sugar forms a racemic mixture in your particular reaction doesn't mean that all reactions result in racemic mixtures.My head is swimming with terms from my undergraduate organic chemistry classes! I must say you sound very cerebral, pedantic, and a regular erudite. I hope to never have to argue some point with you. :o)