Could also be the depiction of the Dutch idiom "De hond in de pot vinden", which literally means "Finding the dog in the pot". The idiom means that you get to the dinner table too late and that all the other people ate everything and that there's nothing left for you.
Oh and "racist"? When I hear stereotypical jokes about Dutch, Germans, Belgians, English, Americans, Canadians, French, Scottish, Irish, Danish, Swedish, Norwegian, Finnish, Austrian, Swiss, Luxembourgian, then it's just funny and as soon as it's Chinese it's racist.... Don't you think that by itself is racism if you think about it?