What have I said? That on some people a diet rich on sugars, starches and carbohydrates, could make the type 2 diabetes condition visible. On other people the same diet doesn't cause the developement of diabetes.
There is also the fact that obesity after the introduction of eatwell-like dietary advice has spreaded like wildfire.
It's possible that are other causes at work and the eatwell plate and dietary advices aren't the primary cause, but other things are at work.
It could be that nobody is actually following the guidelines, because they're hard to follow and are eating more, a lot more, of what should be eaten, and the actual calorie intake is way higher.
In other word the message that is sent by eatwell plate and dietin advices is normally misunderstood.