It isn't that simple. Fructose plays a much different role in lipogenesis than other foods.
Anyone who disputes this is scientifically illiterate.
Well, those who possess a lower IQ are more likely to become obese. So perhaps not understanding the way the universe works is how they wind up obese in the first place. Not too surprising, then, that they would be unable to comprehend how to get themselves out of that state. And there is certainly no shortage of charlatans and mountebanks out there all too ready to lead them astray.
It still is, however a gross oversimplification. Fructose is dense in calories, easily absorbed (which is calories in, not necessarily the food you swallow), contributes heavily to lipogenesis, and does not inhibit leptin, a hormone that controls hunger.
Lots of data and an entertaining presentation, which starts by addressing calories in and calories out: https://www.youtube.com/watch?v=0z5X0i92OZQ
http://www.heartacademy.org/phpwcms/index.php?the-poisonous-...
http://blogs.scientificamerican.com/brainwaves/2013/07/15/is...
Please no - you're someone who knows a bit but thinks they know the full picture. You're way overreactding.
You don't need to use a fancy model. Fructose is more likely to be used as liver fat. But, that doesn't mean it's impossible to lose weight.