Only if you could choose not to employ fat people. Much of the same arguments exist, they choose to eat too much, and therefore at risk of dying earlier, being more ill, smelling. They have made a really bad decision: to stuff their face with cake.
If they say they regret being fat, but don't go on a diet, they are food addicts. Etc etc.
P.s. I don't believe this, just making a point.