The Cuca sounds unpleasant indeed.

[Galadriel does not comment on Iorveth's response, but she does smile privately at the knee-jerk quality of it.]

And your judgment is kinder than most. Quite a number of people in Thedas dislike me...but there are more who feel less adversarial. I suspect the former have focused on the other nature of the Elves and that they fear the possibilities within that nameless quality.