It is known how societies with a majority of elezens (Gridania and Ishgard) are widely against outsiders than other nations, like Ul'dah and Limsa, both nations tho, has an interesting union of mid-landers and elezens as rulers, you may notice in the Gridania flag the twin snakes symbolize hyurans and elezens, in Ishgard hyuran is a minority of the population while other races are non-existent.
In Gridania you will see forestborn hyurans (most midlanders) and elezens living in peace and being suspicious of other ethnicities like duskwights, highlanders and even miqo'tes, and it's interesting, I don't see other races having this sort of relationship like hyurans have with elezens, just a thought.