Just because Obesity becomes the majority does not mean it is the 'standard' especially when the rest of the world isn't as obese. Additionally, it's this thinking that is the danger. That America is pretyy much fat, accept it and move on.
No matter what you say, what you pretend fat acceptance is, you are pretty much asking people to pretend everything is fine. "Please don't draw attention to the fact an obese person is obese". Obesity is the #1 cause of preventable death. We threaten to involve child protective services if people don't vaccinate their kids but won't ever imagine doing the same to obese children whose parents have pretty much doomed them to a lifetime of mental and physical health problems.
I mean what is your end goal then?
You can pretend that you think you know what fat acceptance is, but that doesn't mean that you're right. You can draw very odd parallels to vaccines but that doesn't mean that you understand what you're talking about.
Treat people with respect. Is that such a hard concept? Let me tell you a secret, overweight people know that they're heavy, people never let them forget it. Ever.
Let me ask you a few questions. How would you solve the food desert issue?. Tell me. I want a clear and concise answer for accessible food options. How would you solve the transportation issue in the US which makes going to the grocery store very difficult for low-income communities? How would you solve health care? So people can meet with a doctor and a nutritionist to find a plan that works for them.
We've known about America's problems with obesity for a long time now and we do nothing to address the structural effects that lead people into choosing (if they even have a choice, if they have a grocery store where they live) less than stellar options.
Shaming doesn't do anything. Support, now that's different. That would take some effort. But most people choose to address the problem with obesity with shame and the problem will never get solved.