Well, when i say 'humans are weaker than their opponents' i mean majority of humans. If orcs are real (we dont know if they are or arent) they would be inherently stronger(or faster) than most humans because of their size and their anatomy. Their height/ long legs make them, not really faster, but enable them to cover longer distances faster with large strides. They inherit the genes of their parents(big and bulky) making them automatically stronger if view from an even or unbiased viewpoint. I love friendly arguments. :)