Who cares about capacity. Think of the rations! Fat people have natural bouyancy and threaten our food/water supply. I would give them a sharpened toothbrush and advise to "go for the eyes" against the sharks. They can let the current carry them to land.
But you have to consider affirmative action. Whitey will have the odds against them and have a lot to prove. I'm like 1/8 portugese so I'm not affected.