Mikaze, I feel for you.
On the one hand, from a world building and moralistic standpoint, I agree with you. Having an entire race of creatures who are "supposed to be evil" even if there are token exceptions removes entire spectrums of character options as far as fluff goes. Your race choice, at some point, will become your personality; there will be no separating the two. Which by the way, seems to be the reason some of the Paizo staffers have a dislike of dwarves. Despite having no artificial limitations on their alignment, there appears to be only one kind of dwarf that people play: the Scotch-Irish drunkard with a zest for battle and showmanship, perhaps with a Napoleon complex (oversimplification for illustrative purposes).
On the other hand, the system itself is built around objective alignment, so naturally the world the company builds for it is going to be black or white about these sorts of things. :/ That's just how it is.
Personally, I'd like to see you write your own setting. Weren't you the one who came up with the demi-goddess (Empyreal Lord/Lady?) that pretended to be a bad guy to lead people to heroic destinies? I fricken' loved that.