I have no idea how to respond to such a extreme expression of absolute ignorance on your part, other than mockery. It's almost as if you are making a diligent effort to feign the most extreme ignorance that you possibly can. It's easier for me to believe that you are trolling, than that you are truly, sincerely, as ignorant and deceived as you are pretending to be.
I'll have you know that I have never been fat. As I mentioned before, I've had some other unknown condition that for all the early part of my life, made me tend strongly toward being thin and frail, and only since my diabetes manifested have I been able to achieve a normal, healthy degree of robustness. Now, I'm an unusual case, I know, and as far as I know, unique among my relatives. Most of my paternal blood relatives were more or less of normal robustness until the diabetes hit, then they became fat. None were particularly fat until the diabetes hit. My father, the last by far among his brothers to manifest diabetes, was also the thinnest of them.
My paternal relatives are many in number, and scattered across the country, in a wide range of different professions and lifestyles. Your attempt to paint all of them with the same ignorant broad brush is, at best, utterly absurd. What we all do have in common, that is relative to this topic, is that we have the same genetic heritage, which includes the hereditary predisposition for Type 2 diabetes.