Exactly!
We all have biases that influence us whether we realize it or not. Most people's sports team is their team because their parents were fans or some nonsensical reason. Bias to your kin, kith and regionality have influenced the course of this world for countless centuries and traditionally in the forgotten realms world it exists too. The Drow from Menzoberranzan are extremely xenophobic in the lore and while less evil so are the Dwarves so you should probably get a bonus for the same race with those two races.
