>>527951748
Green Lake exists and disproves this almost instantly where Blonney showed no indication of being able to cast any Arcarum so most people probably thought of her as being a mixed (despite being fullblooded) yet her "friends" still abandoned her and were super racist towards her when the chips were down because they never ACTUALLY believe she was ""sane"".
>>527951969
Semmelweis, while mostly raised alongside humans and being unable to cast spells still internally considered herself an Arcanist and you can see when she's talking to her racist co-worker she just goes along with the shit he's saying and avoids revealing anything to avoid the racism.
Having even a drop of arcanist blood makes humans raise eyebrows even if you're not the spellcasting kind.