Well, I had the family history, but had stress-free outdoor time, which counted as exercise even if it is fun, so I don't see the family history thingie as much of a thing to blame..then again, at home I ate my home cooked vegetables and still only have fast food about once a week...but family history only overrides everything you do if you let it IMHO...and even then, you can be heavy set and not let it cross the line to obesity...Not every heavy set person is doomed to getting so fat they can't walk...
One of my friends he is a heavy guy, but actually more fit that many other people I know

. I dunno, it is a case by case thing I guess...
Maybe SS is trying a bit too hard to be PC lately about everything and that is one of the things that is pushing older fans away