Why do most light skinned boys not like dark girls?

Personally, I've never experienced this. I'm "dark skinned" and all my past boyfriends have been mixed/ light skinned. I'm not bragging, but it all depends on the girl. The sad truth is that a dark skinned girl will usually have to "compensate" for her "unfortunate" skin tone with some out of this world swag. Mad confidence and carrying oneself is so sexy, skin tone isn't a big deal. This isn't a tutorial on "How to bag light skinned boys", but I feel that most lighter skinned boys view dark skinned girls as sub-par. So, to take that kernel of colorism out of their heads, just be your swaggerlicious self and ignore their primitive prejudices. Hope this helped! =]