Every time you try to explain a phenomenon in human health and fitness, you are missing a sufficient understanding without regard to hormone signaling and endocrine function (or dysfunction, as it were). The role of plastics on obesity signaling in endocrine cascades is understood:
I like when people present a necessary cause as if it’s sufficient. I realize that not every educated person on earth had the opportunity to take logic, philosophy, critical thinking, and really deeply study the science of argumentation or even just scientific thinking. However, when you come to my playground, health and fitness, you ought to at least have the intellectual horsepower to differentiate between necessary and sufficient, validity and soundness, correlation and causality, anecdote and dataset.
No one ever said that calories are untrue. They’re just unhelpful as a predictive model. Hormones run the show. And a great many factors other than calories end up affecting hormones.