Yeah, so, obesity and overweight increases across all income levels since the 80's. Source.

Across all adult age groups, current asthma prevalence was significantly higher among adults with obesity compared with those in lower weight categories.

Source

Less than 5% of adults participate in 30 minutes of physical activity each day;2 only one in three adults receive the recommended amount of physical activity each week.3

Typical American diets exceed the recommended intake levels or limits in four categories: calories from solid fats and added sugars; refined grains; sodium; and saturated fat.2

Source

These are, undeniably, problems. The article touches upon this: there are socioeconomic factors contributing to obesity. The proliferation of fast food, working multiple jobs, external stressors, lack of availability of parks or outlets for exercising. These are things we as a society should be working to fix, especially the food supply chain.

But. Here's why I don't get into fat acceptance, or whatever you want to call it.

Obesity-related illness, including chronic disease, disability, and death, is estimated to carry an annual cost of $190.2 billion.17

Projections estimate that by 2018, obesity will cost the U.S. 21 percent of our total healthcare costs - $344 billion annually.18

It affects per capita spending on healthcare. There are health and financial reasons to tackle this problem. Acceptance is giving up.