User blog comment:KressKross/Faunus have human ears too./@comment-86.145.110.17-20130928110316

Blake could be a full faunus, a half breed, or a sympathizer, maybe one of her relatives is a faunus, or she grew up in less than stellar conditions. We still have no concrete evidenceof who she is for the most part, and as far as we can tell, the rest of her friends have even less of a clue.

We still have little idea what Fauna are. Are they another sapient race, or were they artificially made, as slaves or the like? Do different ears and horns imply a heritage to different groups, or do they given up at random?

If they are nothing special compared to humanity (if badass monster slayer is considered normal) it could be they are hated for the same reasons as other minorities; Jerks in power, xenophobia or misinformation. (We'll have to wait for information for the history of Vytal and it's people). As Pyrrah and Yang proved, hatred for them isn't universal, and racism is frowned upon by respectable people.