That is not true . Light skinned girls date dark skinned and marry light skinned men.This is super cope lol because dark skin men get chosen by light skin women much much more than light skin men choosing dark skin women.
In general dark skin men have a much much higher smv as man than dark skin women as a woman.
Ofcourse the old adage phrrase often said by women of all colors and shades *I prefer tall, dark and handsome"