> So, what's your solution to "lack of self discipline"?

IDK, wanting to be alive and happy?

> What is the physical basis for lack of self discipline?

That's just a category error. I just don't see obesity as worth caring about on an individual-level compared to the social dysfunction that produces it. If we can only address problems on an individual-level I don't really see why I should expect anything positive from society—that's just not rational.

You just avoided answering the questions entirely.

But you still want to pass judgement using your ill-defined concept of "self discipline."