Bad food habits, food choices, culture, and very low activity levels have far more significance to obesity than genetics. This is obvious if you just look at historical obesity rates, it was virtually non-existent a few decades ago.
But yes, the obese consume massive medical resources as any doctor or clinician will tell you. At some point you have to acknowledge this and find a way to adjust for that massive cost increase. Allow insurers to set premiums based on BMI, tax BMI, or have a tax credit for healthy BMI, tax junk food, all of the above, etc. Get creative, but you have to find a way to pay for the cost of being fat. Otherwise, obesity and the myriad related illnesses is going to bankrupt the entire US health system.
But yes, the obese consume massive medical resources as any doctor or clinician will tell you. At some point you have to acknowledge this and find a way to adjust for that massive cost increase. Allow insurers to set premiums based on BMI, tax BMI, or have a tax credit for healthy BMI, tax junk food, all of the above, etc. Get creative, but you have to find a way to pay for the cost of being fat. Otherwise, obesity and the myriad related illnesses is going to bankrupt the entire US health system.