I am probably a part of this "jihad" of which you speak. However, I don't ever down vote because I disagree, and I never do just because they are low carb. Although Joshua's answer is better, just coming from the other side (low carber). I firmly believe that carbs alone do not cause obesity or insulin resistance- that is caused by overconsumption of calories and/or sedentary lifestyle, as far as I'm aware. I think that it is unfortunate carbs have been blamed, when people overeat pizza, donuts, pop tarts, bagels, chips, ice cream, garlic bread, milkshakes, cheeseburgers, and the like. Labeling these foods as carbs is inaccurate- labeling them as processed food is. Actually, a large part if not the majority of the calories in these foods comes from fat, not carbs, so saying overeating carbs is ridiculous. I know a helluva a lot of asians who eat rice at breakfast, lunch, and dinner and are quite lean. I also don't see many obese people eating lots of fruit, vegetables, or plain rice when I have looked around at my campus cafeteria. I know lots of lean athletes who drink gatorade and eat pasta (however damaging it may be to their guts). I do not know any who follow a low carb diet (avg sub 50g per day). Personally, I feel, perform, and look better when I eat carbs. I am not aware of any study linking whole fruit consumption to obesity or insulin resistance, but I am aware of many linking fructose poor health outcomes. Fruit is not just fructose. I do actually really get annoyed by people who demonize this stuff. I don't want to have the athleticism or looks of Kresser, Wolf, Kruse, or Lustig ever, so why would I listen to these armchair nutritionists? Oh, that's right, I don't! I prefer people who are out on the field getting results and not dissecting studies to confirm their low carb bias.
Edit: Now I average roughly 150g per day over the course of the week, I'm guessing, but when I was rowing crew and playing soccer and swimming competitively, it was 300g a day easily. AM I obese and insulin resistant? Hell no. Was I when I was eating more carbs? No way. Do carbs make you fat and obese? Not in the real world.