If you haven't been living with extra weight for a decade, you wouldn't have the first-hand experience of why being overweight is definitely a symptom of and contributor to health issues as well as quality of life degredation.
> I have read numerous reports... > Besides, it's hard to know what the health effects really are of being overweight...
I can agree that being overweight is often what a doctor sees, but honestly any doctor that makes assumptions like that is not interested in root causes. They're trying to see as many patients as possible, e.g. as a GP, and offer fixes for what they can fix, and referrals to specialists for that which they can't fix with the usual prescription or advice.
All this to say that I really disagree with the first paragraph, and this entire post feels like just opinion despite conjecture on what numerous reports you've read.