So you agree with me, but still want to ridicule my argument ("parody of itself")? I'm also quite surprised to see a statistician use anecdata as arguments.
Humans are predictably irrational, there are mountains of scientific evidence on the topic [0, 1].
The industry plays us like fiddles to get us to consume ever more. There are more parameters than the ones I described above (socialization and long term hormonal effects come to mind), but the growth of the food industry is the main driver behind the obesity epidemics.
All that food has to be bought, otherwise there's no growth, and investors are not happy and they put their money elsewhere.
The easiest way to convince people to buy food is to make them want to eat it. Modern food has been engineered and optimized to be deceptive and take advantage of our instinctive and cognitive biases, in order to get us to eat more than we need to be healthy.
0. https://web.mit.edu/ariely/www/MIT/
1. https://www.amazon.com/Influence-Psychology-Persuasion-Rober...