I can't think of any groups I have such obvious disagreements with over words like "Xenophobic".
I wonder if that is only because it isn't one of the words suggested as a possible descriptor in D&D? So I ask again, if a player says their character is xenophobic (a claimed to be useful descriptor) does that mean they are against those from other villages, in other regions, other religions, other ethnicities, other skin tones, other countries, non-humans, non-demi-humans, or non-humanoid? How many of those wouldn't it be reasonable as a one word descriptor for?