It's frustrating, as Type 2 diabetes is 100% manageable through diet. You don't even have to exercise, just eat healthy. Today, with the use of continuous glucose monitors, you have all the data you need to make informed diet decisions - you know exactly what "eat healthy" means for your body.
Still popular opinion is that eating meat and fat is bad for you (heart attack) but no many understand that eating sugar and carbs is a highway to diabetes).
In fact many people who go on keto and reverse diabetes report that doctors instead of congratulating them and telling other patients to do the same, tell them that keto diet (i.e. eating lots of meat) will give them heart attacks.
Most people don't know how bad sugar and carbs are because no one tells them.
I point this out because I've gotten the impression that many seem to view keto and veganism as opposite sides of a "culture war", and use that to justify reacting to one or the other with hostility. In reality, they're entirely orthogonal. One is a range of macros while the other is an ethical philosophy, and they aren't in any way mutually exclusive.
*: To preempt the usual comments on this, my current LDL is 54 and HDL is 57. At its lowest point a few years ago, my total cholesterol was exactly 100. I don't buy that saturated fat is necessarily unhealthy at all.