I didn't say you weren't, but it's some serious lack of understanding the world to believe that fat people aren't constantly draining the healthcare system. It's not like they get to age 55 or whatever and health issues pop up out of nowhere, or that they actually save the taxpayer money by dying (lol), they only die after the taxpayer has shoveled millions of dollars of care down their wide gullets
You're misrepresenting my position, and you're arguing with a shocking lack of nuance. For instance, there are plenty of people who qualify as fat but aren't outright obese (say a BMI of 28 or so), or who are marginally obese but not morbidly so (BMI of 31 vs BMI of 40). Even within this "spectrum of fatness", there is huge variation in how sick people are and how much burden they put on the healthcare system. What you describe is true for the real wales, but surely not for your typical BMI 28 person.
Likewise, I didn't say that morbidly obese people save the taxpayer money in absolute terms, I said they're still cheaper than those who live to a high age in a nursing home.