I don't think he was trying to "feed into our culture's (literally) deadly skinny-worshipping obsession." When most people buy t-shirts, they don't buy well fitted t-shirts. That goes for both fat and really skinny and tall people (i was part of the skinny and tall). I found that once I started working out a few times a week, I was actually able to fit in my clothes better. They wouldn't be so frickin' loose on me anymore. So on the contrary, I think his argument applies to both fat and skinny, and his observation has dual intent: be more healthy and fit better in your clothes.
