Pretty sure T2D is reversible with diet and exercise. It's not like T1D. It absolutely is brought on by obesity.
https://medschool.ucla.edu/news-article/can-diabetes-be-reversed
It's pretty well known at this point that if you have T1D your in the "need meds" camp. If you have T2D you're in the "lose weight" camp. There's tons of research on this and a ton of people who lose the weight and the T2D goes with it.