Most couples are within 2 points of eachother on the looks scale. And most of them will fall within the 5-6 range, no matter what their race/age/ehtnicity.
A friend of mine called this "tit for tat".
Does that mean that ugly people can't find beatiful people? No. It does mean that beautiful people have more options.
More options just means they have more opportunity. Its not to say that there is some kind of caste system.
Its statistics.
