But you are, being diabetic isn't just the cost of insulin or whatever, but constant checkups, related issues like amputating feet and so on. Not to mention that a crushing majority of diabetics are horrible deathfats and because of their fatness also suffer from all sorts of stuff thats hard to separate from diabetes.  While I don't really believe in "positive rights", these plebs also cost society as a whole in the sense that if they weren't sick and fat they'd contribute more and cost less.