I think humans easily buy-in to the framing of human behavior in terms of the religious “seven deadly sins.” From wikipedia:
The seven deadly sins, also known as the capital vices or cardinal sins, is a grouping and classification of vices of Christian origin.[1] Behaviors or habits are classified under this category if they directly give birth to other immoralities.[2] According to the standard list, they are pride, greed, lust, envy, gluttony, wrath, and sloth,[2] which are also contrary to the seven virtues. These sins are often thought to be abuses or excessive versions of one’s natural faculties or passions (for example, gluttony abuses one’s desire to eat).
This framing jumps to the conclusion that bad consequences naturally and almost always flow from willfully chosen immoral behavior. From the list above, gluttony and sloth fit nicely into society’s all-too-quick condemnation that type II diabetics eat too much (gluttony) and don’t exercise enough (sloth) and therefore they have brought this consequence on themselves and are to blame.
I totally reject this moral framing because science tells us otherwise. Science is starting to uncover the genetic component of T2D. We now can see that it may very well mean that T2D itself caused both the weight gain and the ultimate T2D symptoms.
Just because T2D symptoms occurred after weight gain does not prove a causal relationship. The illogical conclusion between the apparent sequence of events in T2D, eating too much, weight gain and then diabetes, does not mean a causal cascade. It’s an easy logical fallacy to fall prey to and most unfortunate for people who not only need to deal with the treatment of their T2D but also must deal with the social ignorance as well as the related blame and shame.