Just ban high fructose corn syrup, no need to put fat people in concentration camps and tax them for being fat because muh freedom. But I don't think we can just wait for fat people to die off. They won't. Even if they die at an earlier age, many still manage to breed before that, filling the next generation with fat kids.There are 2 ways to lower obesity rates at this point:
1) Ignore it so people with slower metabolisms die out until we're left with skinny eating machines that require more food a day than the average person currently does.
2) Or ban high fructose corn syrup and enforce smaller portion sizes in restaurants, put people with higher than x% body fat in healthy eating workshops and provide support for those with binge eating disorders.
•Tax the ones that refuse treatment for every % of body fat they are over the limit if you get a statistically significant amount people refusing it.
Naturally that's pretty harsh, but I don't see many other ways to 'fix' the obesity epidemic besides waiting for fatties to die, or getting the gubmint massively involved, since many fatties do seem to lack the willpower to stick to a diet change without tremendous outside help.
The government could also help by requiring that grocery stores have only a small percentage of unhealthy junk food vs. Real food. Ever notice how grocery stores seem to have more cookie and snack cake varieties than fresh produce? Also, a no-bullshit public education/propaganda campaign on healthy eating. If the media and govt. got people to care about wearing masks during this pandemic they could get people to care about eating healthy... obesity is a pandemic too.