Again that isn't the point. It's a drow game in a drow city. Drows are racists that enslave other races because they think that Lolth made them in her perfect image. While as players we know this to be false as the measly racial abilities they get do not come close to justifying the +2 level adjustment they have. Whether or not your build for a character is better than a drow is not the issue. The point is that shifters don't live in Erelhei-Cinlu. If there were some they would either be enslaved or just visiting, probably with other adventurers. Either way they don't really have any reason to stay. The visitors are just going to leave as soon as they do what they came for. As will the slaves if they ever get their freedom.