This is supposed to be proof of racism.
Why?
Apparently because a lot of Calormenes are fanatical adherents of an anti-Aslanist cult and they invade non-Calormene lands and force the people to submit to their desert religion.
Nothing like Arabs and Muslims in real life or anything.
yeah, I suppose if you were sufficiently motivated to look for it, that could be "framed" as racism. Seems a stretch to me, though, and probably you, too. Thanks.