What do you think about the theory that Raven and Apple were switched as babies?

Theres this theory that Apple and Raven were switched as babies, because of their and their moms haircolor and because it would explain why Apple often acts "selfish".

What do you think about it?

I personally dont really know what to think, because yes the haircolor thing is true and in the books it is often brought up that Apple is insecure about not having black hair as the future Snow White, but the theory also completely diminishes Ravens whole story about not wanting to be evil. If they were swapped, then Raven would be Snow Whites daughter, so there would be no point to her plot. 

idk feel free to correct me