I would advise you to read up on the history of the advice ADA has been giving throughout the years (spoiler alert: they were wrong about fats and complex carbohydrates) before putting your money in that basket that this is the "general scientific consensus". But this is a topic I don't want (or need) to argue about.
If you believe that diabetics cannot be vegan, then that’s a separate and equally untrue argument.
Where did I say that? I didn’t. I was referring specifically to the ADA incorrect suggestion for decades that high carbohydrate foods are ok and encouraged for type 2 diabetics. I did not make a meat vs non-meat absolutist statement. It was more a high carb vs low carb absolutist statement. If you are a vegan T2 diabetic who only eats avocados, cabbage, broccoli, and olives…good for you.
My comments were actually specific the commenter who expressed concern about relying on “general consensus” as an argument for reliability of dietary advice and used the ADA example. I backed them up and it’s completely appropriate to this little thread in the discussion.