Freyja is pretty lame for a Yandere and putting the whole “this gorgeous woman was bullied because of a birthmark you can’t even see so now she’s evil” and her pretty standard design...
Some parts of her motivation are kinda cool. The story kind of explored the concept of the whole “creatures in the dreamworld” thing and how...disgusting and horrific our dreams are/would be. I think it’s pretty heavily implied that the one that governs lustful dreams is probably seeing more CHild porn than she wants to, among other things....
So it kinda, sorta, makes sense that someone who only sees those dreams would hate us, and not see the point of keeping us around and trying to save us.
It’s not amazing but I think it’s a decently interesting concept for a villain.