Maybe that was in 2004. Now in 2018 things have changed totally. When I am in Germany I see the best looking German girls also with scrawny or overweight brothers ...I think being fit is the most important thing. I know some asian guys who are physically toned that pull women of other races. One in particular is 'ripped' like Bruce Lee was.
German girls may be into 'American' black males, but they probably wouldn't go for a scrawny brother or an overweight one either.