It's all about carbs and sugars (which are carbs), and combination of medicine that works for your body chemistry and lifestyle.
If you become fat with too many carbs/sugars in your blood stream, you are susceptible to developing Type II.
Red meat has no carbs, unless laced with sugar/honey/etc.
Again, this is propaganda to get animal protein out of your diet. Animal protein--in reasonable portions--makes one physically strong, mentally alert, and emotionally impenetrable.
Serious animal protein deprivation is a classic tool for cults to control people.
Why wouldn't a nefarious government use the same tactic to control its people?
Only one chance to cure type 2. Practice 16 hour fasting every day for 6 months.