This was long-winded and flawed in many ways.
To point just one flaw out: part of the argument is that the modern culture is designed by marketers to keep you unhealthy and consuming.
That's confusing, yet again, correlation with causation. It's just as likely that modern marketers are just doing what people want. That the current system of distraction, consumption, and unhealthiness is evolutionary and not some master plan of a cadre of evil overlords. Sure, it makes for a better straw man to bounce your essay off of, but it's flawed. If nothing else, it assumes a personality for a thing that quite obviously involves tens of thousands of people acting independently. Usually (almost always, really) such systems are emergent in nature.
I understand all the emotional buttons that are being pushed with this, and by all means enjoy your time reading it. I enjoy a good rant and pipe dream about "rational social planning" as much as the next guy. All I ask is to take a little time and ask "Am I being manipulated by people I should hate? Or am I being told a story and a narrative about people to hate so that I can be manipulated?"
EDIT: Of course the truth is somewhere in-between, and I didn't mean to make a false dichotomy. Most times these types of reasoning errors are simply artifacts of the way people solve problems. So, for instance, if you feel that systems are controlled from the top-down, you are more likely to see a dysfunctional system and assume that it was made that way from the top-down. Those of us who have studied dysfunctional systems can only wish that things were that simple. They aren't.