As a white curly haired girl myself, I do not agree with this.
This woman right here is Italian (white) and as you can see her texture is 3c/4a. In the photo she’s at the same hair salon I go to to have my hair cut, and trust me there’s a bunch of curly haired white women like her and me with textures similar to those OP shared.
So, with all due respect, this comment of yours makes no sense.
I do agree on this part, because if you take the whole of the white population on earth, curly hair takes up a small percentage compared to straight and wavy hair. But to imply that
these textures
are unrealistic for white people in general to have is naive. Sure, they’re rather rare, but please don’t go around saying that they’re exclusive to POC 
