You do realise that you are using references that support the view that fructose promotes obesity, while earlier saying that glucose is not protective against obesity. You can't have both:
How are they mutually exclusive? Why can't both promote obesity?
Fructose causes insulin resistance, or at least makes it worse. Insulin resistance makes one more prone to obesity.
Glucose stimulates insulin production which directly causes excess fat storage, which is exactly what obesity is.
Fructose also increases production of triglycerides, which is part of metabolic syndrome, and causes non-alcoholic fatty liver disease.
They are bad enough, separately, but together they are worse.
I'm guessing that you're suggesting that when isolated there is evidence that fructose does more to cause obesity than glucose, but to stretch that to say glucose is protective is not valid.
Fructose, by itself, lowers insulin, but that effect on insulin is negligible compared to the influence of glucose.