What's the problem, then? According to Parker,
food is cheap. As biotechnology advances food prices will rise more slowly than inflation. So food will become cheaper still.That's a problem? Tell it to the poor.
Here's my solution: Let natural selection sort it out. If fatties aren't fit to live, they won't live as long as non-fatties or procreate at the same rate as non-fatties. So, if fatness is gene-related, there'll be fewer fatties in succeeding generations. Otherwise, I don't care how fat other people get, as long as I don't have to pay for their food addiction.