Like let's say all of a sudden wolves started getting super obese. What happened to wolves that they evolved for millions of years just fine, and then whoop all of a sudden they were all diabetic and obese?

Because food is cheap and they have no self-control.

And because certain groups promote fatness as a virtue, or that fatness is healthy.

Just a few comments above you claimed "The sheer scope of the obesity pandemic should make it clear that we are not the problem", and now you admit that it's your fault. Which one is it?

I see it the same as with alcohol, tobacco and other substances. Lack of self-control. Modern food is specifically engineered to be addictive and easy to get. Full of starch, sugars and fats.

There will be no obesity if person maintains a low calorie intake.